255580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{983}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 578592

約数和(自身を除く): 323012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 983, 1966, 3932, 4915, 9830, 12779, 19660, 25558, 51116, 63895, 127790, 255580]

約数ペア:

[(1, 255580), (2, 127790), (4, 63895), (5, 51116), (10, 25558), (13, 19660), (20, 12779), (26, 9830), (52, 4915), (65, 3932), (130, 1966), (260, 983)]