31528760

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3067}}^1$

素因数の和:3335

約数の個数: 32

約数和(自身を含む): 71238960

約数和(自身を除く): 39710200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 3067, 5140, 6134, 10280, 12268, 15335, 24536, 30670, 61340, 122680, 788219, 1576438, 3152876, 3941095, 6305752, 7882190, 15764380, 31528760]

約数ペア:

[(1, 31528760), (2, 15764380), (4, 7882190), (5, 6305752), (8, 3941095), (10, 3152876), (20, 1576438), (40, 788219), (257, 122680), (514, 61340), (1028, 30670), (1285, 24536), (2056, 15335), (2570, 12268), (3067, 10280), (5140, 6134)]