64676540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1429}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 142222080

約数和(自身を除く): 77545540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 365, 620, 730, 1429, 1460, 2263, 2858, 4526, 5716, 7145, 9052, 11315, 14290, 22630, 28580, 44299, 45260, 88598, 104317, 177196, 208634, 221495, 417268, 442990, 521585, 885980, 1043170, 2086340, 3233827, 6467654, 12935308, 16169135, 32338270, 64676540]

約数ペア:

[(1, 64676540), (2, 32338270), (4, 16169135), (5, 12935308), (10, 6467654), (20, 3233827), (31, 2086340), (62, 1043170), (73, 885980), (124, 521585), (146, 442990), (155, 417268), (292, 221495), (310, 208634), (365, 177196), (620, 104317), (730, 88598), (1429, 45260), (1460, 44299), (2263, 28580), (2858, 22630), (4526, 14290), (5716, 11315), (7145, 9052)]