18660730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{587}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 38991456

約数和(自身を除く): 20330726

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 587, 935, 1174, 1445, 1870, 2890, 2935, 3179, 5870, 6358, 6457, 9979, 12914, 15895, 19958, 31790, 32285, 49895, 64570, 99790, 109769, 169643, 219538, 339286, 548845, 848215, 1097690, 1696430, 1866073, 3732146, 9330365, 18660730]

約数ペア:

[(1, 18660730), (2, 9330365), (5, 3732146), (10, 1866073), (11, 1696430), (17, 1097690), (22, 848215), (34, 548845), (55, 339286), (85, 219538), (110, 169643), (170, 109769), (187, 99790), (289, 64570), (374, 49895), (578, 32285), (587, 31790), (935, 19958), (1174, 15895), (1445, 12914), (1870, 9979), (2890, 6457), (2935, 6358), (3179, 5870)]