28959640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 67716000

約数和(自身を除く): 38756360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 113, 149, 172, 215, 226, 298, 344, 430, 452, 565, 596, 745, 860, 904, 1130, 1192, 1490, 1720, 2260, 2980, 4520, 4859, 5960, 6407, 9718, 12814, 16837, 19436, 24295, 25628, 32035, 33674, 38872, 48590, 51256, 64070, 67348, 84185, 97180, 128140, 134696, 168370, 194360, 256280, 336740, 673480, 723991, 1447982, 2895964, 3619955, 5791928, 7239910, 14479820, 28959640]

約数ペア:

[(1, 28959640), (2, 14479820), (4, 7239910), (5, 5791928), (8, 3619955), (10, 2895964), (20, 1447982), (40, 723991), (43, 673480), (86, 336740), (113, 256280), (149, 194360), (172, 168370), (215, 134696), (226, 128140), (298, 97180), (344, 84185), (430, 67348), (452, 64070), (565, 51256), (596, 48590), (745, 38872), (860, 33674), (904, 32035), (1130, 25628), (1192, 24295), (1490, 19436), (1720, 16837), (2260, 12814), (2980, 9718), (4520, 6407), (4859, 5960)]