1608820

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 3402504

約数和(自身を除く): 1793684

約数列:

[1, 2, 4, 5, 10, 20, 257, 313, 514, 626, 1028, 1252, 1285, 1565, 2570, 3130, 5140, 6260, 80441, 160882, 321764, 402205, 804410, 1608820]

約数ペア:

[(1, 1608820), (2, 804410), (4, 402205), (5, 321764), (10, 160882), (20, 80441), (257, 6260), (313, 5140), (514, 3130), (626, 2570), (1028, 1565), (1252, 1285)]