131498008520

素因数分解:

$2^3\times 5^1\times {\mathrm{3287450213}}^1$

素因数の和:3287450224

約数の個数: 16

約数和(自身を含む): 295870519260

約数和(自身を除く): 164372510740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3287450213, 6574900426, 13149800852, 16437251065, 26299601704, 32874502130, 65749004260, 131498008520]

約数ペア:

[(1, 131498008520), (2, 65749004260), (4, 32874502130), (5, 26299601704), (8, 16437251065), (10, 13149800852), (20, 6574900426), (40, 3287450213)]