1990235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{457}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 2616096

約数和(自身を除く): 625861

約数列:

[1, 5, 13, 65, 67, 335, 457, 871, 2285, 4355, 5941, 29705, 30619, 153095, 398047, 1990235]

約数ペア:

[(1, 1990235), (5, 398047), (13, 153095), (65, 30619), (67, 29705), (335, 5941), (457, 4355), (871, 2285)]