397328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1334

約数の個数: 20

約数和(自身を含む): 810960

約数和(自身を除く): 413632

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1307, 2614, 5228, 10456, 20912, 24833, 49666, 99332, 198664, 397328]

約数ペア:

[(1, 397328), (2, 198664), (4, 99332), (8, 49666), (16, 24833), (19, 20912), (38, 10456), (76, 5228), (152, 2614), (304, 1307)]