67257220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{82021}}^1$

素因数の和:82071

約数の個数: 24

約数和(自身を含む): 144686808

約数和(自身を除く): 77429588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 82021, 164042, 328084, 410105, 820210, 1640420, 3362861, 6725722, 13451444, 16814305, 33628610, 67257220]

約数ペア:

[(1, 67257220), (2, 33628610), (4, 16814305), (5, 13451444), (10, 6725722), (20, 3362861), (41, 1640420), (82, 820210), (164, 410105), (205, 328084), (410, 164042), (820, 82021)]