18258980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31481}}^1$

素因数の和:31519

約数の個数: 24

約数和(自身を含む): 39667320

約数和(自身を除く): 21408340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31481, 62962, 125924, 157405, 314810, 629620, 912949, 1825898, 3651796, 4564745, 9129490, 18258980]

約数ペア:

[(1, 18258980), (2, 9129490), (4, 4564745), (5, 3651796), (10, 1825898), (20, 912949), (29, 629620), (58, 314810), (116, 157405), (145, 125924), (290, 62962), (580, 31481)]