388264640

素因数分解:

$2^6\times 5^1\times {\mathrm{1213327}}^1$

素因数の和:1213344

約数の個数: 28

約数和(自身を含む): 924555936

約数和(自身を除く): 536291296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1213327, 2426654, 4853308, 6066635, 9706616, 12133270, 19413232, 24266540, 38826464, 48533080, 77652928, 97066160, 194132320, 388264640]

約数ペア:

[(1, 388264640), (2, 194132320), (4, 97066160), (5, 77652928), (8, 48533080), (10, 38826464), (16, 24266540), (20, 19413232), (32, 12133270), (40, 9706616), (64, 6066635), (80, 4853308), (160, 2426654), (320, 1213327)]