20018120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17257}}^1$

素因数の和:17297

約数の個数: 32

約数和(自身を含む): 46596600

約数和(自身を除く): 26578480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17257, 34514, 69028, 86285, 138056, 172570, 345140, 500453, 690280, 1000906, 2001812, 2502265, 4003624, 5004530, 10009060, 20018120]

約数ペア:

[(1, 20018120), (2, 10009060), (4, 5004530), (5, 4003624), (8, 2502265), (10, 2001812), (20, 1000906), (29, 690280), (40, 500453), (58, 345140), (116, 172570), (145, 138056), (232, 86285), (290, 69028), (580, 34514), (1160, 17257)]