20000575

素因数分解:

$5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:616

約数の個数: 36

約数和(自身を含む): 29897640

約数和(自身を除く): 9897065

約数列:

[1, 5, 7, 25, 29, 35, 49, 145, 175, 203, 245, 563, 725, 1015, 1225, 1421, 2815, 3941, 5075, 7105, 14075, 16327, 19705, 27587, 35525, 81635, 98525, 114289, 137935, 408175, 571445, 689675, 800023, 2857225, 4000115, 20000575]

約数ペア:

[(1, 20000575), (5, 4000115), (7, 2857225), (25, 800023), (29, 689675), (35, 571445), (49, 408175), (145, 137935), (175, 114289), (203, 98525), (245, 81635), (563, 35525), (725, 27587), (1015, 19705), (1225, 16327), (1421, 14075), (2815, 7105), (3941, 5075)]