87907960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{44851}}^1$

素因数の和:44876

約数の個数: 48

約数和(自身を含む): 230090760

約数和(自身を除く): 142182800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 44851, 89702, 179404, 224255, 313957, 358808, 448510, 627914, 897020, 1255828, 1569785, 1794040, 2197699, 2511656, 3139570, 4395398, 6279140, 8790796, 10988495, 12558280, 17581592, 21976990, 43953980, 87907960]

約数ペア:

[(1, 87907960), (2, 43953980), (4, 21976990), (5, 17581592), (7, 12558280), (8, 10988495), (10, 8790796), (14, 6279140), (20, 4395398), (28, 3139570), (35, 2511656), (40, 2197699), (49, 1794040), (56, 1569785), (70, 1255828), (98, 897020), (140, 627914), (196, 448510), (245, 358808), (280, 313957), (392, 224255), (490, 179404), (980, 89702), (1960, 44851)]