139011380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{408857}}^1$

素因数の和:408883

約数の個数: 24

約数和(自身を含む): 309096648

約数和(自身を除く): 170085268

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 408857, 817714, 1635428, 2044285, 4088570, 6950569, 8177140, 13901138, 27802276, 34752845, 69505690, 139011380]

約数ペア:

[(1, 139011380), (2, 69505690), (4, 34752845), (5, 27802276), (10, 13901138), (17, 8177140), (20, 6950569), (34, 4088570), (68, 2044285), (85, 1635428), (170, 817714), (340, 408857)]