78656920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 184147200

約数和(自身を除く): 105490280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 229, 248, 277, 310, 458, 554, 620, 916, 1108, 1145, 1240, 1385, 1832, 2216, 2290, 2770, 4580, 5540, 7099, 8587, 9160, 11080, 14198, 17174, 28396, 34348, 35495, 42935, 56792, 63433, 68696, 70990, 85870, 126866, 141980, 171740, 253732, 283960, 317165, 343480, 507464, 634330, 1268660, 1966423, 2537320, 3932846, 7865692, 9832115, 15731384, 19664230, 39328460, 78656920]

約数ペア:

[(1, 78656920), (2, 39328460), (4, 19664230), (5, 15731384), (8, 9832115), (10, 7865692), (20, 3932846), (31, 2537320), (40, 1966423), (62, 1268660), (124, 634330), (155, 507464), (229, 343480), (248, 317165), (277, 283960), (310, 253732), (458, 171740), (554, 141980), (620, 126866), (916, 85870), (1108, 70990), (1145, 68696), (1240, 63433), (1385, 56792), (1832, 42935), (2216, 35495), (2290, 34348), (2770, 28396), (4580, 17174), (5540, 14198), (7099, 11080), (8587, 9160)]