1091980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 2328480

約数和(自身を除く): 1236500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 769, 1420, 1538, 3076, 3845, 7690, 15380, 54599, 109198, 218396, 272995, 545990, 1091980]

約数ペア:

[(1, 1091980), (2, 545990), (4, 272995), (5, 218396), (10, 109198), (20, 54599), (71, 15380), (142, 7690), (284, 3845), (355, 3076), (710, 1538), (769, 1420)]