216187540

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{39887}}^1$

素因数の和:40167

約数の個数: 24

約数和(自身を含む): 455680512

約数和(自身を除く): 239492972

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 39887, 79774, 159548, 199435, 398870, 797740, 10809377, 21618754, 43237508, 54046885, 108093770, 216187540]

約数ペア:

[(1, 216187540), (2, 108093770), (4, 54046885), (5, 43237508), (10, 21618754), (20, 10809377), (271, 797740), (542, 398870), (1084, 199435), (1355, 159548), (2710, 79774), (5420, 39887)]