31349680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12641}}^1$

素因数の和:12685

約数の個数: 40

約数和(自身を含む): 75245184

約数和(自身を除く): 43895504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12641, 25282, 50564, 63205, 101128, 126410, 202256, 252820, 391871, 505640, 783742, 1011280, 1567484, 1959355, 3134968, 3918710, 6269936, 7837420, 15674840, 31349680]

約数ペア:

[(1, 31349680), (2, 15674840), (4, 7837420), (5, 6269936), (8, 3918710), (10, 3134968), (16, 1959355), (20, 1567484), (31, 1011280), (40, 783742), (62, 505640), (80, 391871), (124, 252820), (155, 202256), (248, 126410), (310, 101128), (496, 63205), (620, 50564), (1240, 25282), (2480, 12641)]