1861640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4231}}^1$

素因数の和:4253

約数の個数: 32

約数和(自身を含む): 4570560

約数和(自身を除く): 2708920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 4231, 8462, 16924, 21155, 33848, 42310, 46541, 84620, 93082, 169240, 186164, 232705, 372328, 465410, 930820, 1861640]

約数ペア:

[(1, 1861640), (2, 930820), (4, 465410), (5, 372328), (8, 232705), (10, 186164), (11, 169240), (20, 93082), (22, 84620), (40, 46541), (44, 42310), (55, 33848), (88, 21155), (110, 16924), (220, 8462), (440, 4231)]