180140620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{818821}}^1$

素因数の和:818841

約数の個数: 24

約数和(自身を含む): 412686288

約数和(自身を除く): 232545668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 818821, 1637642, 3275284, 4094105, 8188210, 9007031, 16376420, 18014062, 36028124, 45035155, 90070310, 180140620]

約数ペア:

[(1, 180140620), (2, 90070310), (4, 45035155), (5, 36028124), (10, 18014062), (11, 16376420), (20, 9007031), (22, 8188210), (44, 4094105), (55, 3275284), (110, 1637642), (220, 818821)]