20540030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2264

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 22037890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2111, 4222, 4865, 9730, 10555, 14777, 21110, 29554, 73885, 147770, 293429, 586858, 1467145, 2054003, 2934290, 4108006, 10270015, 20540030]

約数ペア:

[(1, 20540030), (2, 10270015), (5, 4108006), (7, 2934290), (10, 2054003), (14, 1467145), (35, 586858), (70, 293429), (139, 147770), (278, 73885), (695, 29554), (973, 21110), (1390, 14777), (1946, 10555), (2111, 9730), (4222, 4865)]