408840490

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{99961}}^1$

素因数の和:100377

約数の個数: 16

約数和(自身を含む): 737719560

約数和(自身を除く): 328879070

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 99961, 199922, 499805, 999610, 40884049, 81768098, 204420245, 408840490]

約数ペア:

[(1, 408840490), (2, 204420245), (5, 81768098), (10, 40884049), (409, 999610), (818, 499805), (2045, 199922), (4090, 99961)]