1661982025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{769}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 2337350400

約数和(自身を除く): 675368375

約数列:

[1, 5, 11, 25, 29, 55, 145, 271, 275, 319, 725, 769, 1355, 1595, 2981, 3845, 6775, 7859, 7975, 8459, 14905, 19225, 22301, 39295, 42295, 74525, 86449, 111505, 196475, 208399, 211475, 245311, 432245, 557525, 1041995, 1226555, 2161225, 2292389, 5209975, 6043571, 6132775, 11461945, 30217855, 57309725, 66479281, 151089275, 332396405, 1661982025]

約数ペア:

[(1, 1661982025), (5, 332396405), (11, 151089275), (25, 66479281), (29, 57309725), (55, 30217855), (145, 11461945), (271, 6132775), (275, 6043571), (319, 5209975), (725, 2292389), (769, 2161225), (1355, 1226555), (1595, 1041995), (2981, 557525), (3845, 432245), (6775, 245311), (7859, 211475), (7975, 208399), (8459, 196475), (14905, 111505), (19225, 86449), (22301, 74525), (39295, 42295)]