257355280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:138

約数の個数: 320

約数和(自身を含む): 809948160

約数和(自身を除く): 552592880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 29, 35, 40, 46, 52, 53, 56, 58, 65, 70, 80, 91, 92, 104, 106, 112, 115, 116, 130, 140, 145, 161, 182, 184, 203, 208, 212, 230, 232, 260, 265, 280, 290, 299, 322, 364, 368, 371, 377, 406, 424, 455, 460, 464, 520, 530, 560, 580, 598, 644, 667, 689, 728, 742, 754, 805, 812, 848, 910, 920, 1015, 1040, 1060, 1160, 1196, 1219, 1288, 1334, 1378, 1456, 1484, 1495, 1508, 1537, 1610, 1624, 1820, 1840, 1855, 1885, 2030, 2093, 2120, 2320, 2392, 2438, 2576, 2639, 2668, 2756, 2968, 2990, 3016, 3074, 3220, 3248, 3335, 3445, 3640, 3710, 3770, 4060, 4186, 4240, 4669, 4784, 4823, 4876, 5278, 5336, 5512, 5936, 5980, 6032, 6095, 6148, 6440, 6670, 6890, 7280, 7420, 7540, 7685, 8120, 8372, 8533, 8671, 9338, 9646, 9752, 10465, 10556, 10672, 10759, 11024, 11960, 12190, 12296, 12880, 13195, 13340, 13780, 14840, 15080, 15370, 15847, 16240, 16744, 17066, 17342, 18676, 19292, 19504, 19981, 20930, 21112, 21518, 23345, 23920, 24115, 24380, 24592, 26390, 26680, 27560, 29680, 30160, 30740, 31694, 33488, 34132, 34684, 35351, 37352, 38584, 39962, 41860, 42224, 42665, 43036, 43355, 46690, 48230, 48760, 52780, 53360, 53795, 55120, 60697, 61480, 63388, 68264, 69368, 70702, 74704, 77168, 79235, 79924, 83720, 85330, 86072, 86710, 93380, 96460, 97520, 99905, 105560, 107590, 110929, 121394, 122960, 126776, 136528, 138736, 139867, 141404, 158470, 159848, 167440, 170660, 172144, 173420, 176755, 186760, 192920, 199810, 211120, 215180, 221858, 242788, 247457, 253552, 279734, 282808, 303485, 316940, 319696, 341320, 346840, 353510, 373520, 385840, 399620, 430360, 443716, 459563, 485576, 494914, 554645, 559468, 565616, 606970, 633880, 682640, 693680, 699335, 707020, 799240, 860720, 887432, 919126, 971152, 989828, 1109290, 1118936, 1213940, 1237285, 1267760, 1398670, 1414040, 1598480, 1774864, 1838252, 1979656, 2218580, 2237872, 2297815, 2427880, 2474570, 2797340, 2828080, 3216941, 3676504, 3959312, 4437160, 4595630, 4855760, 4949140, 5594680, 6433882, 7353008, 8874320, 9191260, 9898280, 11189360, 12867764, 16084705, 18382520, 19796560, 25735528, 32169410, 36765040, 51471056, 64338820, 128677640, 257355280]

約数ペア:

[(1, 257355280), (2, 128677640), (4, 64338820), (5, 51471056), (7, 36765040), (8, 32169410), (10, 25735528), (13, 19796560), (14, 18382520), (16, 16084705), (20, 12867764), (23, 11189360), (26, 9898280), (28, 9191260), (29, 8874320), (35, 7353008), (40, 6433882), (46, 5594680), (52, 4949140), (53, 4855760), (56, 4595630), (58, 4437160), (65, 3959312), (70, 3676504), (80, 3216941), (91, 2828080), (92, 2797340), (104, 2474570), (106, 2427880), (112, 2297815), (115, 2237872), (116, 2218580), (130, 1979656), (140, 1838252), (145, 1774864), (161, 1598480), (182, 1414040), (184, 1398670), (203, 1267760), (208, 1237285), (212, 1213940), (230, 1118936), (232, 1109290), (260, 989828), (265, 971152), (280, 919126), (290, 887432), (299, 860720), (322, 799240), (364, 707020), (368, 699335), (371, 693680), (377, 682640), (406, 633880), (424, 606970), (455, 565616), (460, 559468), (464, 554645), (520, 494914), (530, 485576), (560, 459563), (580, 443716), (598, 430360), (644, 399620), (667, 385840), (689, 373520), (728, 353510), (742, 346840), (754, 341320), (805, 319696), (812, 316940), (848, 303485), (910, 282808), (920, 279734), (1015, 253552), (1040, 247457), (1060, 242788), (1160, 221858), (1196, 215180), (1219, 211120), (1288, 199810), (1334, 192920), (1378, 186760), (1456, 176755), (1484, 173420), (1495, 172144), (1508, 170660), (1537, 167440), (1610, 159848), (1624, 158470), (1820, 141404), (1840, 139867), (1855, 138736), (1885, 136528), (2030, 126776), (2093, 122960), (2120, 121394), (2320, 110929), (2392, 107590), (2438, 105560), (2576, 99905), (2639, 97520), (2668, 96460), (2756, 93380), (2968, 86710), (2990, 86072), (3016, 85330), (3074, 83720), (3220, 79924), (3248, 79235), (3335, 77168), (3445, 74704), (3640, 70702), (3710, 69368), (3770, 68264), (4060, 63388), (4186, 61480), (4240, 60697), (4669, 55120), (4784, 53795), (4823, 53360), (4876, 52780), (5278, 48760), (5336, 48230), (5512, 46690), (5936, 43355), (5980, 43036), (6032, 42665), (6095, 42224), (6148, 41860), (6440, 39962), (6670, 38584), (6890, 37352), (7280, 35351), (7420, 34684), (7540, 34132), (7685, 33488), (8120, 31694), (8372, 30740), (8533, 30160), (8671, 29680), (9338, 27560), (9646, 26680), (9752, 26390), (10465, 24592), (10556, 24380), (10672, 24115), (10759, 23920), (11024, 23345), (11960, 21518), (12190, 21112), (12296, 20930), (12880, 19981), (13195, 19504), (13340, 19292), (13780, 18676), (14840, 17342), (15080, 17066), (15370, 16744), (15847, 16240)]