66997975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 97136640

約数和(自身を除く): 30138665

約数列:

[1, 5, 11, 25, 29, 31, 55, 145, 155, 271, 275, 319, 341, 725, 775, 899, 1355, 1595, 1705, 2981, 4495, 6775, 7859, 7975, 8401, 8525, 9889, 14905, 22475, 39295, 42005, 49445, 74525, 86449, 92411, 196475, 210025, 243629, 247225, 432245, 462055, 1218145, 2161225, 2310275, 2679919, 6090725, 13399595, 66997975]

約数ペア:

[(1, 66997975), (5, 13399595), (11, 6090725), (25, 2679919), (29, 2310275), (31, 2161225), (55, 1218145), (145, 462055), (155, 432245), (271, 247225), (275, 243629), (319, 210025), (341, 196475), (725, 92411), (775, 86449), (899, 74525), (1355, 49445), (1595, 42005), (1705, 39295), (2981, 22475), (4495, 14905), (6775, 9889), (7859, 8525), (7975, 8401)]