18419480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10709}}^1$

素因数の和:10763

約数の個数: 32

約数和(自身を含む): 42411600

約数和(自身を除く): 23992120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10709, 21418, 42836, 53545, 85672, 107090, 214180, 428360, 460487, 920974, 1841948, 2302435, 3683896, 4604870, 9209740, 18419480]

約数ペア:

[(1, 18419480), (2, 9209740), (4, 4604870), (5, 3683896), (8, 2302435), (10, 1841948), (20, 920974), (40, 460487), (43, 428360), (86, 214180), (172, 107090), (215, 85672), (344, 53545), (430, 42836), (860, 21418), (1720, 10709)]