20529370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{613}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 39389328

約数和(自身を除く): 18859958

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 197, 394, 613, 985, 1226, 1970, 3065, 3349, 6130, 6698, 10421, 16745, 20842, 33490, 52105, 104210, 120761, 241522, 603805, 1207610, 2052937, 4105874, 10264685, 20529370]

約数ペア:

[(1, 20529370), (2, 10264685), (5, 4105874), (10, 2052937), (17, 1207610), (34, 603805), (85, 241522), (170, 120761), (197, 104210), (394, 52105), (613, 33490), (985, 20842), (1226, 16745), (1970, 10421), (3065, 6698), (3349, 6130)]