87301980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7951}}^1$

素因数の和:8027

約数の個数: 72

約数和(自身を含む): 269191104

約数和(自身を除く): 181889124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 7951, 10980, 15902, 23853, 31804, 39755, 47706, 71559, 79510, 95412, 119265, 143118, 159020, 238530, 286236, 357795, 477060, 485011, 715590, 970022, 1431180, 1455033, 1940044, 2425055, 2910066, 4365099, 4850110, 5820132, 7275165, 8730198, 9700220, 14550330, 17460396, 21825495, 29100660, 43650990, 87301980]

約数ペア:

[(1, 87301980), (2, 43650990), (3, 29100660), (4, 21825495), (5, 17460396), (6, 14550330), (9, 9700220), (10, 8730198), (12, 7275165), (15, 5820132), (18, 4850110), (20, 4365099), (30, 2910066), (36, 2425055), (45, 1940044), (60, 1455033), (61, 1431180), (90, 970022), (122, 715590), (180, 485011), (183, 477060), (244, 357795), (305, 286236), (366, 238530), (549, 159020), (610, 143118), (732, 119265), (915, 95412), (1098, 79510), (1220, 71559), (1830, 47706), (2196, 39755), (2745, 31804), (3660, 23853), (5490, 15902), (7951, 10980)]