259360

素因数分解:

$2^5\times 5^1\times {\mathrm{1621}}^1$

素因数の和:1636

約数の個数: 24

約数和(自身を含む): 613116

約数和(自身を除く): 353756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1621, 3242, 6484, 8105, 12968, 16210, 25936, 32420, 51872, 64840, 129680, 259360]

約数ペア:

[(1, 259360), (2, 129680), (4, 64840), (5, 51872), (8, 32420), (10, 25936), (16, 16210), (20, 12968), (32, 8105), (40, 6484), (80, 3242), (160, 1621)]