31661540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 69242880

約数和(自身を除く): 37581340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 229, 310, 446, 458, 620, 892, 916, 1115, 1145, 2230, 2290, 4460, 4580, 6913, 7099, 13826, 14198, 27652, 28396, 34565, 35495, 51067, 69130, 70990, 102134, 138260, 141980, 204268, 255335, 510670, 1021340, 1583077, 3166154, 6332308, 7915385, 15830770, 31661540]

約数ペア:

[(1, 31661540), (2, 15830770), (4, 7915385), (5, 6332308), (10, 3166154), (20, 1583077), (31, 1021340), (62, 510670), (124, 255335), (155, 204268), (223, 141980), (229, 138260), (310, 102134), (446, 70990), (458, 69130), (620, 51067), (892, 35495), (916, 34565), (1115, 28396), (1145, 27652), (2230, 14198), (2290, 13826), (4460, 7099), (4580, 6913)]