20237735

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 30878496

約数和(自身を除く): 10640761

約数列:

[1, 5, 7, 17, 35, 43, 49, 85, 113, 119, 215, 245, 301, 565, 595, 731, 791, 833, 1505, 1921, 2107, 3655, 3955, 4165, 4859, 5117, 5537, 9605, 10535, 13447, 24295, 25585, 27685, 34013, 35819, 67235, 82603, 94129, 170065, 179095, 238091, 413015, 470645, 578221, 1190455, 2891105, 4047547, 20237735]

約数ペア:

[(1, 20237735), (5, 4047547), (7, 2891105), (17, 1190455), (35, 578221), (43, 470645), (49, 413015), (85, 238091), (113, 179095), (119, 170065), (215, 94129), (245, 82603), (301, 67235), (565, 35819), (595, 34013), (731, 27685), (791, 25585), (833, 24295), (1505, 13447), (1921, 10535), (2107, 9605), (3655, 5537), (3955, 5117), (4165, 4859)]