90981520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4391}}^1$

素因数の和:4448

約数の個数: 80

約数和(自身を含む): 248341248

約数和(自身を除く): 157359728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 4391, 5180, 8782, 10360, 17564, 20720, 21955, 30737, 35128, 43910, 61474, 70256, 87820, 122948, 153685, 162467, 175640, 245896, 307370, 324934, 351280, 491792, 614740, 649868, 812335, 1137269, 1229480, 1299736, 1624670, 2274538, 2458960, 2599472, 3249340, 4549076, 5686345, 6498680, 9098152, 11372690, 12997360, 18196304, 22745380, 45490760, 90981520]

約数ペア:

[(1, 90981520), (2, 45490760), (4, 22745380), (5, 18196304), (7, 12997360), (8, 11372690), (10, 9098152), (14, 6498680), (16, 5686345), (20, 4549076), (28, 3249340), (35, 2599472), (37, 2458960), (40, 2274538), (56, 1624670), (70, 1299736), (74, 1229480), (80, 1137269), (112, 812335), (140, 649868), (148, 614740), (185, 491792), (259, 351280), (280, 324934), (296, 307370), (370, 245896), (518, 175640), (560, 162467), (592, 153685), (740, 122948), (1036, 87820), (1295, 70256), (1480, 61474), (2072, 43910), (2590, 35128), (2960, 30737), (4144, 21955), (4391, 20720), (5180, 17564), (8782, 10360)]