18058280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10499}}^1$

素因数の和:10553

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 23521720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10499, 20998, 41996, 52495, 83992, 104990, 209980, 419960, 451457, 902914, 1805828, 2257285, 3611656, 4514570, 9029140, 18058280]

約数ペア:

[(1, 18058280), (2, 9029140), (4, 4514570), (5, 3611656), (8, 2257285), (10, 1805828), (20, 902914), (40, 451457), (43, 419960), (86, 209980), (172, 104990), (215, 83992), (344, 52495), (430, 41996), (860, 20998), (1720, 10499)]