68268680

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{2521}}^1$

素因数の和:3209

約数の個数: 32

約数和(自身を含む): 153892440

約数和(自身を除く): 85623760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1354, 2521, 2708, 3385, 5042, 5416, 6770, 10084, 12605, 13540, 20168, 25210, 27080, 50420, 100840, 1706717, 3413434, 6826868, 8533585, 13653736, 17067170, 34134340, 68268680]

約数ペア:

[(1, 68268680), (2, 34134340), (4, 17067170), (5, 13653736), (8, 8533585), (10, 6826868), (20, 3413434), (40, 1706717), (677, 100840), (1354, 50420), (2521, 27080), (2708, 25210), (3385, 20168), (5042, 13540), (5416, 12605), (6770, 10084)]