39895780

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 85800960

約数和(自身を除く): 45905180

約数列:

[1, 2, 4, 5, 10, 20, 113, 127, 139, 226, 254, 278, 452, 508, 556, 565, 635, 695, 1130, 1270, 1390, 2260, 2540, 2780, 14351, 15707, 17653, 28702, 31414, 35306, 57404, 62828, 70612, 71755, 78535, 88265, 143510, 157070, 176530, 287020, 314140, 353060, 1994789, 3989578, 7979156, 9973945, 19947890, 39895780]

約数ペア:

[(1, 39895780), (2, 19947890), (4, 9973945), (5, 7979156), (10, 3989578), (20, 1994789), (113, 353060), (127, 314140), (139, 287020), (226, 176530), (254, 157070), (278, 143510), (452, 88265), (508, 78535), (556, 71755), (565, 70612), (635, 62828), (695, 57404), (1130, 35306), (1270, 31414), (1390, 28702), (2260, 17653), (2540, 15707), (2780, 14351)]