207458420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{797917}}^1$

素因数の和:797939

約数の個数: 24

約数和(自身を含む): 469175784

約数和(自身を除く): 261717364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 797917, 1595834, 3191668, 3989585, 7979170, 10372921, 15958340, 20745842, 41491684, 51864605, 103729210, 207458420]

約数ペア:

[(1, 207458420), (2, 103729210), (4, 51864605), (5, 41491684), (10, 20745842), (13, 15958340), (20, 10372921), (26, 7979170), (52, 3989585), (65, 3191668), (130, 1595834), (260, 797917)]