30951640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 72864000

約数和(自身を除く): 41912360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 229, 248, 310, 436, 458, 545, 620, 872, 916, 1090, 1145, 1240, 1832, 2180, 2290, 3379, 4360, 4580, 6758, 7099, 9160, 13516, 14198, 16895, 24961, 27032, 28396, 33790, 35495, 49922, 56792, 67580, 70990, 99844, 124805, 135160, 141980, 199688, 249610, 283960, 499220, 773791, 998440, 1547582, 3095164, 3868955, 6190328, 7737910, 15475820, 30951640]

約数ペア:

[(1, 30951640), (2, 15475820), (4, 7737910), (5, 6190328), (8, 3868955), (10, 3095164), (20, 1547582), (31, 998440), (40, 773791), (62, 499220), (109, 283960), (124, 249610), (155, 199688), (218, 141980), (229, 135160), (248, 124805), (310, 99844), (436, 70990), (458, 67580), (545, 56792), (620, 49922), (872, 35495), (916, 33790), (1090, 28396), (1145, 27032), (1240, 24961), (1832, 16895), (2180, 14198), (2290, 13516), (3379, 9160), (4360, 7099), (4580, 6758)]