25811140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31477}}^1$

素因数の和:31527

約数の個数: 24

約数和(自身を含む): 55527192

約数和(自身を除く): 29716052

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31477, 62954, 125908, 157385, 314770, 629540, 1290557, 2581114, 5162228, 6452785, 12905570, 25811140]

約数ペア:

[(1, 25811140), (2, 12905570), (4, 6452785), (5, 5162228), (10, 2581114), (20, 1290557), (41, 629540), (82, 314770), (164, 157385), (205, 125908), (410, 62954), (820, 31477)]