257199796

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{22907}}^1$

素因数の和:23319

約数の個数: 24

約数和(自身を含む): 515704896

約数和(自身を除く): 258505100

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 2807, 5614, 11228, 22907, 45814, 91628, 160349, 320698, 641396, 9185707, 18371414, 36742828, 64299949, 128599898, 257199796]

約数ペア:

[(1, 257199796), (2, 128599898), (4, 64299949), (7, 36742828), (14, 18371414), (28, 9185707), (401, 641396), (802, 320698), (1604, 160349), (2807, 91628), (5614, 45814), (11228, 22907)]