20153193725

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{18329}}^1$

素因数の和:18510

約数の個数: 48

約数和(自身を含む): 29311576320

約数和(自身を除く): 9158382595

約数列:

[1, 5, 7, 25, 35, 61, 103, 175, 305, 427, 515, 721, 1525, 2135, 2575, 3605, 6283, 10675, 18025, 18329, 31415, 43981, 91645, 128303, 157075, 219905, 458225, 641515, 1099525, 1118069, 1887887, 3207575, 5590345, 7826483, 9439435, 13215209, 27951725, 39132415, 47197175, 66076045, 115161107, 195662075, 330380225, 575805535, 806127749, 2879027675, 4030638745, 20153193725]

約数ペア:

[(1, 20153193725), (5, 4030638745), (7, 2879027675), (25, 806127749), (35, 575805535), (61, 330380225), (103, 195662075), (175, 115161107), (305, 66076045), (427, 47197175), (515, 39132415), (721, 27951725), (1525, 13215209), (2135, 9439435), (2575, 7826483), (3605, 5590345), (6283, 3207575), (10675, 1887887), (18025, 1118069), (18329, 1099525), (31415, 641515), (43981, 458225), (91645, 219905), (128303, 157075)]