28654730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220421}}^1$

素因数の和:220441

約数の個数: 16

約数和(自身を含む): 55546344

約数和(自身を除く): 26891614

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 220421, 440842, 1102105, 2204210, 2865473, 5730946, 14327365, 28654730]

約数ペア:

[(1, 28654730), (2, 14327365), (5, 5730946), (10, 2865473), (13, 2204210), (26, 1102105), (65, 440842), (130, 220421)]