179128420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 383201280

約数和(自身を除く): 204072860

約数列:

[1, 2, 4, 5, 10, 20, 109, 127, 218, 254, 436, 508, 545, 635, 647, 1090, 1270, 1294, 2180, 2540, 2588, 3235, 6470, 12940, 13843, 27686, 55372, 69215, 70523, 82169, 138430, 141046, 164338, 276860, 282092, 328676, 352615, 410845, 705230, 821690, 1410460, 1643380, 8956421, 17912842, 35825684, 44782105, 89564210, 179128420]

約数ペア:

[(1, 179128420), (2, 89564210), (4, 44782105), (5, 35825684), (10, 17912842), (20, 8956421), (109, 1643380), (127, 1410460), (218, 821690), (254, 705230), (436, 410845), (508, 352615), (545, 328676), (635, 282092), (647, 276860), (1090, 164338), (1270, 141046), (1294, 138430), (2180, 82169), (2540, 70523), (2588, 69215), (3235, 55372), (6470, 27686), (12940, 13843)]