20458210

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{137}}^2$

素因数の和:390

約数の個数: 24

約数和(自身を含む): 37435860

約数和(自身を除く): 16977650

約数列:

[1, 2, 5, 10, 109, 137, 218, 274, 545, 685, 1090, 1370, 14933, 18769, 29866, 37538, 74665, 93845, 149330, 187690, 2045821, 4091642, 10229105, 20458210]

約数ペア:

[(1, 20458210), (2, 10229105), (5, 4091642), (10, 2045821), (109, 187690), (137, 149330), (218, 93845), (274, 74665), (545, 37538), (685, 29866), (1090, 18769), (1370, 14933)]