19417960

素因数分解:

$2^3\times 5^1\times {\mathrm{587}}^1\times {\mathrm{827}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 43817760

約数和(自身を除く): 24399800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 587, 827, 1174, 1654, 2348, 2935, 3308, 4135, 4696, 5870, 6616, 8270, 11740, 16540, 23480, 33080, 485449, 970898, 1941796, 2427245, 3883592, 4854490, 9708980, 19417960]

約数ペア:

[(1, 19417960), (2, 9708980), (4, 4854490), (5, 3883592), (8, 2427245), (10, 1941796), (20, 970898), (40, 485449), (587, 33080), (827, 23480), (1174, 16540), (1654, 11740), (2348, 8270), (2935, 6616), (3308, 5870), (4135, 4696)]