99663880

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3851}}^1$

素因数の和:4509

約数の個数: 32

約数和(自身を含む): 224648640

約数和(自身を除く): 124984760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 3851, 5176, 6470, 7702, 12940, 15404, 19255, 25880, 30808, 38510, 77020, 154040, 2491597, 4983194, 9966388, 12457985, 19932776, 24915970, 49831940, 99663880]

約数ペア:

[(1, 99663880), (2, 49831940), (4, 24915970), (5, 19932776), (8, 12457985), (10, 9966388), (20, 4983194), (40, 2491597), (647, 154040), (1294, 77020), (2588, 38510), (3235, 30808), (3851, 25880), (5176, 19255), (6470, 15404), (7702, 12940)]