20095920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:164

約数の個数: 240

約数和(自身を含む): 77182560

約数和(自身を除く): 57086640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 48, 52, 57, 60, 65, 72, 76, 78, 80, 90, 95, 104, 113, 114, 117, 120, 130, 144, 152, 156, 171, 180, 190, 195, 208, 226, 228, 234, 240, 247, 260, 285, 304, 312, 339, 342, 360, 380, 390, 452, 456, 468, 494, 520, 565, 570, 585, 624, 678, 684, 720, 741, 760, 780, 855, 904, 912, 936, 988, 1017, 1040, 1130, 1140, 1170, 1235, 1356, 1368, 1469, 1482, 1520, 1560, 1695, 1710, 1808, 1872, 1976, 2034, 2147, 2223, 2260, 2280, 2340, 2470, 2712, 2736, 2938, 2964, 3120, 3390, 3420, 3705, 3952, 4068, 4294, 4407, 4446, 4520, 4560, 4680, 4940, 5085, 5424, 5876, 5928, 6441, 6780, 6840, 7345, 7410, 8136, 8588, 8814, 8892, 9040, 9360, 9880, 10170, 10735, 11115, 11752, 11856, 12882, 13221, 13560, 13680, 14690, 14820, 16272, 17176, 17628, 17784, 19323, 19760, 20340, 21470, 22035, 22230, 23504, 25764, 26442, 27120, 27911, 29380, 29640, 32205, 34352, 35256, 35568, 38646, 40680, 42940, 44070, 44460, 51528, 52884, 55822, 58760, 59280, 64410, 66105, 70512, 77292, 81360, 83733, 85880, 88140, 88920, 96615, 103056, 105768, 111644, 117520, 128820, 132210, 139555, 154584, 167466, 171760, 176280, 177840, 193230, 211536, 223288, 251199, 257640, 264420, 279110, 309168, 334932, 352560, 386460, 418665, 446576, 502398, 515280, 528840, 558220, 669864, 772920, 837330, 1004796, 1057680, 1116440, 1255995, 1339728, 1545840, 1674660, 2009592, 2232880, 2511990, 3349320, 4019184, 5023980, 6698640, 10047960, 20095920]

約数ペア:

[(1, 20095920), (2, 10047960), (3, 6698640), (4, 5023980), (5, 4019184), (6, 3349320), (8, 2511990), (9, 2232880), (10, 2009592), (12, 1674660), (13, 1545840), (15, 1339728), (16, 1255995), (18, 1116440), (19, 1057680), (20, 1004796), (24, 837330), (26, 772920), (30, 669864), (36, 558220), (38, 528840), (39, 515280), (40, 502398), (45, 446576), (48, 418665), (52, 386460), (57, 352560), (60, 334932), (65, 309168), (72, 279110), (76, 264420), (78, 257640), (80, 251199), (90, 223288), (95, 211536), (104, 193230), (113, 177840), (114, 176280), (117, 171760), (120, 167466), (130, 154584), (144, 139555), (152, 132210), (156, 128820), (171, 117520), (180, 111644), (190, 105768), (195, 103056), (208, 96615), (226, 88920), (228, 88140), (234, 85880), (240, 83733), (247, 81360), (260, 77292), (285, 70512), (304, 66105), (312, 64410), (339, 59280), (342, 58760), (360, 55822), (380, 52884), (390, 51528), (452, 44460), (456, 44070), (468, 42940), (494, 40680), (520, 38646), (565, 35568), (570, 35256), (585, 34352), (624, 32205), (678, 29640), (684, 29380), (720, 27911), (741, 27120), (760, 26442), (780, 25764), (855, 23504), (904, 22230), (912, 22035), (936, 21470), (988, 20340), (1017, 19760), (1040, 19323), (1130, 17784), (1140, 17628), (1170, 17176), (1235, 16272), (1356, 14820), (1368, 14690), (1469, 13680), (1482, 13560), (1520, 13221), (1560, 12882), (1695, 11856), (1710, 11752), (1808, 11115), (1872, 10735), (1976, 10170), (2034, 9880), (2147, 9360), (2223, 9040), (2260, 8892), (2280, 8814), (2340, 8588), (2470, 8136), (2712, 7410), (2736, 7345), (2938, 6840), (2964, 6780), (3120, 6441), (3390, 5928), (3420, 5876), (3705, 5424), (3952, 5085), (4068, 4940), (4294, 4680), (4407, 4560), (4446, 4520)]