68528240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1811}}^1$

素因数の和:1878

約数の個数: 80

約数和(自身を含む): 177952896

約数和(自身を除く): 109424656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1811, 1892, 2365, 3440, 3622, 3784, 4730, 7244, 7568, 9055, 9460, 14488, 18110, 18920, 19921, 28976, 36220, 37840, 39842, 72440, 77873, 79684, 99605, 144880, 155746, 159368, 199210, 311492, 318736, 389365, 398420, 622984, 778730, 796840, 856603, 1245968, 1557460, 1593680, 1713206, 3114920, 3426412, 4283015, 6229840, 6852824, 8566030, 13705648, 17132060, 34264120, 68528240]

約数ペア:

[(1, 68528240), (2, 34264120), (4, 17132060), (5, 13705648), (8, 8566030), (10, 6852824), (11, 6229840), (16, 4283015), (20, 3426412), (22, 3114920), (40, 1713206), (43, 1593680), (44, 1557460), (55, 1245968), (80, 856603), (86, 796840), (88, 778730), (110, 622984), (172, 398420), (176, 389365), (215, 318736), (220, 311492), (344, 199210), (430, 159368), (440, 155746), (473, 144880), (688, 99605), (860, 79684), (880, 77873), (946, 72440), (1720, 39842), (1811, 37840), (1892, 36220), (2365, 28976), (3440, 19921), (3622, 18920), (3784, 18110), (4730, 14488), (7244, 9460), (7568, 9055)]