19741480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44867}}^1$

素因数の和:44889

約数の個数: 32

約数和(自身を含む): 48457440

約数和(自身を除く): 28715960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44867, 89734, 179468, 224335, 358936, 448670, 493537, 897340, 987074, 1794680, 1974148, 2467685, 3948296, 4935370, 9870740, 19741480]

約数ペア:

[(1, 19741480), (2, 9870740), (4, 4935370), (5, 3948296), (8, 2467685), (10, 1974148), (11, 1794680), (20, 987074), (22, 897340), (40, 493537), (44, 448670), (55, 358936), (88, 224335), (110, 179468), (220, 89734), (440, 44867)]