220193780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{268529}}^1$

素因数の和:268579

約数の個数: 24

約数和(自身を含む): 473686920

約数和(自身を除く): 253493140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 268529, 537058, 1074116, 1342645, 2685290, 5370580, 11009689, 22019378, 44038756, 55048445, 110096890, 220193780]

約数ペア:

[(1, 220193780), (2, 110096890), (4, 55048445), (5, 44038756), (10, 22019378), (20, 11009689), (41, 5370580), (82, 2685290), (164, 1342645), (205, 1074116), (410, 537058), (820, 268529)]