642537364

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{2953}}^1$

素因数の和:3392

約数の個数: 48

約数和(自身を含む): 1356476800

約数和(自身を除く): 713939436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 409, 532, 818, 1636, 2863, 2953, 5726, 5906, 7771, 11452, 11812, 15542, 20671, 31084, 41342, 54397, 56107, 82684, 108794, 112214, 217588, 224428, 392749, 785498, 1207777, 1570996, 2415554, 4831108, 8454439, 16908878, 22947763, 33817756, 45895526, 91791052, 160634341, 321268682, 642537364]

約数ペア:

[(1, 642537364), (2, 321268682), (4, 160634341), (7, 91791052), (14, 45895526), (19, 33817756), (28, 22947763), (38, 16908878), (76, 8454439), (133, 4831108), (266, 2415554), (409, 1570996), (532, 1207777), (818, 785498), (1636, 392749), (2863, 224428), (2953, 217588), (5726, 112214), (5906, 108794), (7771, 82684), (11452, 56107), (11812, 54397), (15542, 41342), (20671, 31084)]