20855630

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{4003}}^1$

素因数の和:4531

約数の個数: 16

約数和(自身を含む): 37621584

約数和(自身を除く): 16765954

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 4003, 5210, 8006, 20015, 40030, 2085563, 4171126, 10427815, 20855630]

約数ペア:

[(1, 20855630), (2, 10427815), (5, 4171126), (10, 2085563), (521, 40030), (1042, 20015), (2605, 8006), (4003, 5210)]