68176420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{262217}}^1$

素因数の和:262239

約数の個数: 24

約数和(自身を含む): 154184184

約数和(自身を除く): 86007764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 262217, 524434, 1048868, 1311085, 2622170, 3408821, 5244340, 6817642, 13635284, 17044105, 34088210, 68176420]

約数ペア:

[(1, 68176420), (2, 34088210), (4, 17044105), (5, 13635284), (10, 6817642), (13, 5244340), (20, 3408821), (26, 2622170), (52, 1311085), (65, 1048868), (130, 524434), (260, 262217)]