31394920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{337}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 75563280

約数和(自身を除く): 44168360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 170, 274, 337, 340, 548, 674, 680, 685, 1096, 1348, 1370, 1685, 2329, 2696, 2740, 3370, 4658, 5480, 5729, 6740, 9316, 11458, 11645, 13480, 18632, 22916, 23290, 28645, 45832, 46169, 46580, 57290, 92338, 93160, 114580, 184676, 229160, 230845, 369352, 461690, 784873, 923380, 1569746, 1846760, 3139492, 3924365, 6278984, 7848730, 15697460, 31394920]

約数ペア:

[(1, 31394920), (2, 15697460), (4, 7848730), (5, 6278984), (8, 3924365), (10, 3139492), (17, 1846760), (20, 1569746), (34, 923380), (40, 784873), (68, 461690), (85, 369352), (136, 230845), (137, 229160), (170, 184676), (274, 114580), (337, 93160), (340, 92338), (548, 57290), (674, 46580), (680, 46169), (685, 45832), (1096, 28645), (1348, 23290), (1370, 22916), (1685, 18632), (2329, 13480), (2696, 11645), (2740, 11458), (3370, 9316), (4658, 6740), (5480, 5729)]