19798660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1373}}^1$

素因数の和:1492

約数の個数: 48

約数和(自身を含む): 48013056

約数和(自身を除く): 28214396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1373, 1442, 2060, 2746, 2884, 3605, 5492, 6865, 7210, 9611, 13730, 14420, 19222, 27460, 38444, 48055, 96110, 141419, 192220, 282838, 565676, 707095, 989933, 1414190, 1979866, 2828380, 3959732, 4949665, 9899330, 19798660]

約数ペア:

[(1, 19798660), (2, 9899330), (4, 4949665), (5, 3959732), (7, 2828380), (10, 1979866), (14, 1414190), (20, 989933), (28, 707095), (35, 565676), (70, 282838), (103, 192220), (140, 141419), (206, 96110), (412, 48055), (515, 38444), (721, 27460), (1030, 19222), (1373, 14420), (1442, 13730), (2060, 9611), (2746, 7210), (2884, 6865), (3605, 5492)]