86890520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1008

約数の個数: 64

約数和(自身を含む): 204595200

約数和(自身を除く): 117704680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 887, 1240, 1580, 1774, 2449, 3160, 3548, 4435, 4898, 7096, 8870, 9796, 12245, 17740, 19592, 24490, 27497, 35480, 48980, 54994, 70073, 97960, 109988, 137485, 140146, 219976, 274970, 280292, 350365, 549940, 560584, 700730, 1099880, 1401460, 2172263, 2802920, 4344526, 8689052, 10861315, 17378104, 21722630, 43445260, 86890520]

約数ペア:

[(1, 86890520), (2, 43445260), (4, 21722630), (5, 17378104), (8, 10861315), (10, 8689052), (20, 4344526), (31, 2802920), (40, 2172263), (62, 1401460), (79, 1099880), (124, 700730), (155, 560584), (158, 549940), (248, 350365), (310, 280292), (316, 274970), (395, 219976), (620, 140146), (632, 137485), (790, 109988), (887, 97960), (1240, 70073), (1580, 54994), (1774, 48980), (2449, 35480), (3160, 27497), (3548, 24490), (4435, 19592), (4898, 17740), (7096, 12245), (8870, 9796)]