12946280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1021}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 29249640

約数和(自身を除く): 16303360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1021, 1268, 1585, 2042, 2536, 3170, 4084, 5105, 6340, 8168, 10210, 12680, 20420, 40840, 323657, 647314, 1294628, 1618285, 2589256, 3236570, 6473140, 12946280]

約数ペア:

[(1, 12946280), (2, 6473140), (4, 3236570), (5, 2589256), (8, 1618285), (10, 1294628), (20, 647314), (40, 323657), (317, 40840), (634, 20420), (1021, 12680), (1268, 10210), (1585, 8168), (2042, 6340), (2536, 5105), (3170, 4084)]