201604280

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{12323}}^1$

素因数の和:12743

約数の個数: 32

約数和(自身を含む): 454755600

約数和(自身を除く): 253151320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 12323, 16360, 24646, 49292, 61615, 98584, 123230, 246460, 492920, 5040107, 10080214, 20160428, 25200535, 40320856, 50401070, 100802140, 201604280]

約数ペア:

[(1, 201604280), (2, 100802140), (4, 50401070), (5, 40320856), (8, 25200535), (10, 20160428), (20, 10080214), (40, 5040107), (409, 492920), (818, 246460), (1636, 123230), (2045, 98584), (3272, 61615), (4090, 49292), (8180, 24646), (12323, 16360)]