205641010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{2887}}^1$

素因数の和:3330

約数の個数: 32

約数和(自身を含む): 392999040

約数和(自身を除く): 187358030

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 419, 838, 2095, 2887, 4190, 5774, 7123, 14246, 14435, 28870, 35615, 49079, 71230, 98158, 245395, 490790, 1209653, 2419306, 6048265, 12096530, 20564101, 41128202, 102820505, 205641010]

約数ペア:

[(1, 205641010), (2, 102820505), (5, 41128202), (10, 20564101), (17, 12096530), (34, 6048265), (85, 2419306), (170, 1209653), (419, 490790), (838, 245395), (2095, 98158), (2887, 71230), (4190, 49079), (5774, 35615), (7123, 28870), (14246, 14435)]