67680440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{54581}}^1$

素因数の和:54623

約数の個数: 32

約数和(自身を含む): 157196160

約数和(自身を除く): 89515720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 54581, 109162, 218324, 272905, 436648, 545810, 1091620, 1692011, 2183240, 3384022, 6768044, 8460055, 13536088, 16920110, 33840220, 67680440]

約数ペア:

[(1, 67680440), (2, 33840220), (4, 16920110), (5, 13536088), (8, 8460055), (10, 6768044), (20, 3384022), (31, 2183240), (40, 1692011), (62, 1091620), (124, 545810), (155, 436648), (248, 272905), (310, 218324), (620, 109162), (1240, 54581)]