320434828

素因数分解:

$2^2\times 7^1\times {\mathrm{563}}^1\times {\mathrm{20327}}^1$

素因数の和:20901

約数の個数: 24

約数和(自身を含む): 642039552

約数和(自身を除く): 321604724

約数列:

[1, 2, 4, 7, 14, 28, 563, 1126, 2252, 3941, 7882, 15764, 20327, 40654, 81308, 142289, 284578, 569156, 11444101, 22888202, 45776404, 80108707, 160217414, 320434828]

約数ペア:

[(1, 320434828), (2, 160217414), (4, 80108707), (7, 45776404), (14, 22888202), (28, 11444101), (563, 569156), (1126, 284578), (2252, 142289), (3941, 81308), (7882, 40654), (15764, 20327)]