78488620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1553}}^1$

素因数の和:1607

約数の個数: 72

約数和(自身を含む): 198936864

約数和(自身を除く): 120448244

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 665, 722, 1330, 1444, 1553, 1805, 2527, 2660, 3106, 3610, 5054, 6212, 7220, 7765, 10108, 10871, 12635, 15530, 21742, 25270, 29507, 31060, 43484, 50540, 54355, 59014, 108710, 118028, 147535, 206549, 217420, 295070, 413098, 560633, 590140, 826196, 1032745, 1121266, 2065490, 2242532, 2803165, 3924431, 4130980, 5606330, 7848862, 11212660, 15697724, 19622155, 39244310, 78488620]

約数ペア:

[(1, 78488620), (2, 39244310), (4, 19622155), (5, 15697724), (7, 11212660), (10, 7848862), (14, 5606330), (19, 4130980), (20, 3924431), (28, 2803165), (35, 2242532), (38, 2065490), (70, 1121266), (76, 1032745), (95, 826196), (133, 590140), (140, 560633), (190, 413098), (266, 295070), (361, 217420), (380, 206549), (532, 147535), (665, 118028), (722, 108710), (1330, 59014), (1444, 54355), (1553, 50540), (1805, 43484), (2527, 31060), (2660, 29507), (3106, 25270), (3610, 21742), (5054, 15530), (6212, 12635), (7220, 10871), (7765, 10108)]