68742500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:942

約数の個数: 60

約数和(自身を含む): 155350272

約数和(自身を除く): 86607772

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 775, 887, 1250, 1550, 1774, 2500, 3100, 3548, 3875, 4435, 7750, 8870, 15500, 17740, 19375, 22175, 27497, 38750, 44350, 54994, 77500, 88700, 109988, 110875, 137485, 221750, 274970, 443500, 549940, 554375, 687425, 1108750, 1374850, 2217500, 2749700, 3437125, 6874250, 13748500, 17185625, 34371250, 68742500]

約数ペア:

[(1, 68742500), (2, 34371250), (4, 17185625), (5, 13748500), (10, 6874250), (20, 3437125), (25, 2749700), (31, 2217500), (50, 1374850), (62, 1108750), (100, 687425), (124, 554375), (125, 549940), (155, 443500), (250, 274970), (310, 221750), (500, 137485), (620, 110875), (625, 109988), (775, 88700), (887, 77500), (1250, 54994), (1550, 44350), (1774, 38750), (2500, 27497), (3100, 22175), (3548, 19375), (3875, 17740), (4435, 15500), (7750, 8870)]