399401280

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:859

約数の個数: 280

約数和(自身を含む): 1497360480

約数和(自身を除く): 1097959200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 192, 216, 228, 240, 270, 285, 288, 304, 320, 324, 342, 360, 380, 405, 432, 456, 480, 513, 540, 570, 576, 608, 648, 684, 720, 760, 810, 811, 855, 864, 912, 960, 1026, 1080, 1140, 1216, 1296, 1368, 1440, 1520, 1539, 1620, 1622, 1710, 1728, 1824, 2052, 2160, 2280, 2433, 2565, 2592, 2736, 2880, 3040, 3078, 3240, 3244, 3420, 3648, 4055, 4104, 4320, 4560, 4866, 5130, 5184, 5472, 6080, 6156, 6480, 6488, 6840, 7299, 7695, 8110, 8208, 8640, 9120, 9732, 10260, 10944, 12165, 12312, 12960, 12976, 13680, 14598, 15390, 15409, 16220, 16416, 18240, 19464, 20520, 21897, 24330, 24624, 25920, 25952, 27360, 29196, 30780, 30818, 32440, 32832, 36495, 38928, 41040, 43794, 46227, 48660, 49248, 51904, 54720, 58392, 61560, 61636, 64880, 65691, 72990, 77045, 77856, 82080, 87588, 92454, 97320, 98496, 109485, 116784, 123120, 123272, 129760, 131382, 138681, 145980, 154090, 155712, 164160, 175176, 184908, 194640, 218970, 231135, 233568, 246240, 246544, 259520, 262764, 277362, 291960, 308180, 328455, 350352, 369816, 389280, 416043, 437940, 462270, 467136, 492480, 493088, 525528, 554724, 583920, 616360, 656910, 693405, 700704, 739632, 778560, 832086, 875880, 924540, 986176, 1051056, 1109448, 1167840, 1232720, 1248129, 1313820, 1386810, 1401408, 1479264, 1664172, 1751760, 1849080, 2080215, 2102112, 2218896, 2335680, 2465440, 2496258, 2627640, 2773620, 2958528, 3328344, 3503520, 3698160, 4160430, 4204224, 4437792, 4930880, 4992516, 5255280, 5547240, 6240645, 6656688, 7007040, 7396320, 8320860, 8875584, 9985032, 10510560, 11094480, 12481290, 13313376, 14792640, 16641720, 19970064, 21021120, 22188960, 24962580, 26626752, 33283440, 39940128, 44377920, 49925160, 66566880, 79880256, 99850320, 133133760, 199700640, 399401280]

約数ペア:

[(1, 399401280), (2, 199700640), (3, 133133760), (4, 99850320), (5, 79880256), (6, 66566880), (8, 49925160), (9, 44377920), (10, 39940128), (12, 33283440), (15, 26626752), (16, 24962580), (18, 22188960), (19, 21021120), (20, 19970064), (24, 16641720), (27, 14792640), (30, 13313376), (32, 12481290), (36, 11094480), (38, 10510560), (40, 9985032), (45, 8875584), (48, 8320860), (54, 7396320), (57, 7007040), (60, 6656688), (64, 6240645), (72, 5547240), (76, 5255280), (80, 4992516), (81, 4930880), (90, 4437792), (95, 4204224), (96, 4160430), (108, 3698160), (114, 3503520), (120, 3328344), (135, 2958528), (144, 2773620), (152, 2627640), (160, 2496258), (162, 2465440), (171, 2335680), (180, 2218896), (190, 2102112), (192, 2080215), (216, 1849080), (228, 1751760), (240, 1664172), (270, 1479264), (285, 1401408), (288, 1386810), (304, 1313820), (320, 1248129), (324, 1232720), (342, 1167840), (360, 1109448), (380, 1051056), (405, 986176), (432, 924540), (456, 875880), (480, 832086), (513, 778560), (540, 739632), (570, 700704), (576, 693405), (608, 656910), (648, 616360), (684, 583920), (720, 554724), (760, 525528), (810, 493088), (811, 492480), (855, 467136), (864, 462270), (912, 437940), (960, 416043), (1026, 389280), (1080, 369816), (1140, 350352), (1216, 328455), (1296, 308180), (1368, 291960), (1440, 277362), (1520, 262764), (1539, 259520), (1620, 246544), (1622, 246240), (1710, 233568), (1728, 231135), (1824, 218970), (2052, 194640), (2160, 184908), (2280, 175176), (2433, 164160), (2565, 155712), (2592, 154090), (2736, 145980), (2880, 138681), (3040, 131382), (3078, 129760), (3240, 123272), (3244, 123120), (3420, 116784), (3648, 109485), (4055, 98496), (4104, 97320), (4320, 92454), (4560, 87588), (4866, 82080), (5130, 77856), (5184, 77045), (5472, 72990), (6080, 65691), (6156, 64880), (6480, 61636), (6488, 61560), (6840, 58392), (7299, 54720), (7695, 51904), (8110, 49248), (8208, 48660), (8640, 46227), (9120, 43794), (9732, 41040), (10260, 38928), (10944, 36495), (12165, 32832), (12312, 32440), (12960, 30818), (12976, 30780), (13680, 29196), (14598, 27360), (15390, 25952), (15409, 25920), (16220, 24624), (16416, 24330), (18240, 21897), (19464, 20520)]