216860180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{252163}}^1$

素因数の和:252215

約数の個数: 24

約数和(自身を含む): 465999072

約数和(自身を除く): 249138892

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 252163, 504326, 1008652, 1260815, 2521630, 5043260, 10843009, 21686018, 43372036, 54215045, 108430090, 216860180]

約数ペア:

[(1, 216860180), (2, 108430090), (4, 54215045), (5, 43372036), (10, 21686018), (20, 10843009), (43, 5043260), (86, 2521630), (172, 1260815), (215, 1008652), (430, 504326), (860, 252163)]