20533210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 38528784

約数和(自身を除く): 17995574

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 610, 821, 1642, 2501, 4105, 5002, 8210, 12505, 25010, 33661, 50081, 67322, 100162, 168305, 250405, 336610, 500810, 2053321, 4106642, 10266605, 20533210]

約数ペア:

[(1, 20533210), (2, 10266605), (5, 4106642), (10, 2053321), (41, 500810), (61, 336610), (82, 250405), (122, 168305), (205, 100162), (305, 67322), (410, 50081), (610, 33661), (821, 25010), (1642, 12505), (2501, 8210), (4105, 5002)]