79791560

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 183859200

約数和(自身を除く): 104067640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 127, 139, 226, 254, 278, 452, 508, 556, 565, 635, 695, 904, 1016, 1112, 1130, 1270, 1390, 2260, 2540, 2780, 4520, 5080, 5560, 14351, 15707, 17653, 28702, 31414, 35306, 57404, 62828, 70612, 71755, 78535, 88265, 114808, 125656, 141224, 143510, 157070, 176530, 287020, 314140, 353060, 574040, 628280, 706120, 1994789, 3989578, 7979156, 9973945, 15958312, 19947890, 39895780, 79791560]

約数ペア:

[(1, 79791560), (2, 39895780), (4, 19947890), (5, 15958312), (8, 9973945), (10, 7979156), (20, 3989578), (40, 1994789), (113, 706120), (127, 628280), (139, 574040), (226, 353060), (254, 314140), (278, 287020), (452, 176530), (508, 157070), (556, 143510), (565, 141224), (635, 125656), (695, 114808), (904, 88265), (1016, 78535), (1112, 71755), (1130, 70612), (1270, 62828), (1390, 57404), (2260, 35306), (2540, 31414), (2780, 28702), (4520, 17653), (5080, 15707), (5560, 14351)]