640258135

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{190837}}^1$

素因数の和:190914

約数の個数: 16

約数和(自身を含む): 851900832

約数和(自身を除く): 211642697

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 190837, 954185, 2099207, 10496035, 11641057, 58205285, 128051627, 640258135]

約数ペア:

[(1, 640258135), (5, 128051627), (11, 58205285), (55, 11641057), (61, 10496035), (305, 2099207), (671, 954185), (3355, 190837)]