2811080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2267}}^1$

素因数の和:2309

約数の個数: 32

約数和(自身を含む): 6531840

約数和(自身を除く): 3720760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2267, 4534, 9068, 11335, 18136, 22670, 45340, 70277, 90680, 140554, 281108, 351385, 562216, 702770, 1405540, 2811080]

約数ペア:

[(1, 2811080), (2, 1405540), (4, 702770), (5, 562216), (8, 351385), (10, 281108), (20, 140554), (31, 90680), (40, 70277), (62, 45340), (124, 22670), (155, 18136), (248, 11335), (310, 9068), (620, 4534), (1240, 2267)]