391312

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:706

約数の個数: 20

約数和(自身を含む): 779836

約数和(自身を除く): 388524

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 661, 1322, 2644, 5288, 10576, 24457, 48914, 97828, 195656, 391312]

約数ペア:

[(1, 391312), (2, 195656), (4, 97828), (8, 48914), (16, 24457), (37, 10576), (74, 5288), (148, 2644), (296, 1322), (592, 661)]