19321940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 44924544

約数和(自身を除く): 25602604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1237, 1420, 1562, 2474, 3124, 3905, 4948, 6185, 7810, 12370, 13607, 15620, 24740, 27214, 54428, 68035, 87827, 136070, 175654, 272140, 351308, 439135, 878270, 966097, 1756540, 1932194, 3864388, 4830485, 9660970, 19321940]

約数ペア:

[(1, 19321940), (2, 9660970), (4, 4830485), (5, 3864388), (10, 1932194), (11, 1756540), (20, 966097), (22, 878270), (44, 439135), (55, 351308), (71, 272140), (110, 175654), (142, 136070), (220, 87827), (284, 68035), (355, 54428), (710, 27214), (781, 24740), (1237, 15620), (1420, 13607), (1562, 12370), (2474, 7810), (3124, 6185), (3905, 4948)]