81326640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:707

約数の個数: 160

約数和(自身を含む): 275982336

約数和(自身を除く): 194655696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 240, 248, 255, 272, 310, 340, 372, 408, 465, 496, 510, 527, 620, 643, 680, 744, 816, 930, 1020, 1054, 1240, 1286, 1360, 1488, 1581, 1860, 1929, 2040, 2108, 2480, 2572, 2635, 3162, 3215, 3720, 3858, 4080, 4216, 5144, 5270, 6324, 6430, 7440, 7716, 7905, 8432, 9645, 10288, 10540, 10931, 12648, 12860, 15432, 15810, 19290, 19933, 21080, 21862, 25296, 25720, 30864, 31620, 32793, 38580, 39866, 42160, 43724, 51440, 54655, 59799, 63240, 65586, 77160, 79732, 87448, 99665, 109310, 119598, 126480, 131172, 154320, 159464, 163965, 174896, 199330, 218620, 239196, 262344, 298995, 318928, 327930, 338861, 398660, 437240, 478392, 524688, 597990, 655860, 677722, 797320, 874480, 956784, 1016583, 1195980, 1311720, 1355444, 1594640, 1694305, 2033166, 2391960, 2623440, 2710888, 3388610, 4066332, 4783920, 5082915, 5421776, 6777220, 8132664, 10165830, 13554440, 16265328, 20331660, 27108880, 40663320, 81326640]

約数ペア:

[(1, 81326640), (2, 40663320), (3, 27108880), (4, 20331660), (5, 16265328), (6, 13554440), (8, 10165830), (10, 8132664), (12, 6777220), (15, 5421776), (16, 5082915), (17, 4783920), (20, 4066332), (24, 3388610), (30, 2710888), (31, 2623440), (34, 2391960), (40, 2033166), (48, 1694305), (51, 1594640), (60, 1355444), (62, 1311720), (68, 1195980), (80, 1016583), (85, 956784), (93, 874480), (102, 797320), (120, 677722), (124, 655860), (136, 597990), (155, 524688), (170, 478392), (186, 437240), (204, 398660), (240, 338861), (248, 327930), (255, 318928), (272, 298995), (310, 262344), (340, 239196), (372, 218620), (408, 199330), (465, 174896), (496, 163965), (510, 159464), (527, 154320), (620, 131172), (643, 126480), (680, 119598), (744, 109310), (816, 99665), (930, 87448), (1020, 79732), (1054, 77160), (1240, 65586), (1286, 63240), (1360, 59799), (1488, 54655), (1581, 51440), (1860, 43724), (1929, 42160), (2040, 39866), (2108, 38580), (2480, 32793), (2572, 31620), (2635, 30864), (3162, 25720), (3215, 25296), (3720, 21862), (3858, 21080), (4080, 19933), (4216, 19290), (5144, 15810), (5270, 15432), (6324, 12860), (6430, 12648), (7440, 10931), (7716, 10540), (7905, 10288), (8432, 9645)]