31721120

素因数分解:

$2^5\times 5^1\times {\mathrm{198257}}^1$

素因数の和:198272

約数の個数: 24

約数和(自身を含む): 74941524

約数和(自身を除く): 43220404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 198257, 396514, 793028, 991285, 1586056, 1982570, 3172112, 3965140, 6344224, 7930280, 15860560, 31721120]

約数ペア:

[(1, 31721120), (2, 15860560), (4, 7930280), (5, 6344224), (8, 3965140), (10, 3172112), (16, 1982570), (20, 1586056), (32, 991285), (40, 793028), (80, 396514), (160, 198257)]