428350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{659}}^1$

素因数の和:684

約数の個数: 24

約数和(自身を含む): 859320

約数和(自身を除く): 430970

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 659, 1318, 3295, 6590, 8567, 16475, 17134, 32950, 42835, 85670, 214175, 428350]

約数ペア:

[(1, 428350), (2, 214175), (5, 85670), (10, 42835), (13, 32950), (25, 17134), (26, 16475), (50, 8567), (65, 6590), (130, 3295), (325, 1318), (650, 659)]