31803020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1471}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 71221248

約数和(自身を除く): 39418228

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 1471, 2162, 2942, 4324, 5405, 5884, 7355, 10810, 14710, 21620, 29420, 33833, 67666, 69137, 135332, 138274, 169165, 276548, 338330, 345685, 676660, 691370, 1382740, 1590151, 3180302, 6360604, 7950755, 15901510, 31803020]

約数ペア:

[(1, 31803020), (2, 15901510), (4, 7950755), (5, 6360604), (10, 3180302), (20, 1590151), (23, 1382740), (46, 691370), (47, 676660), (92, 345685), (94, 338330), (115, 276548), (188, 169165), (230, 138274), (235, 135332), (460, 69137), (470, 67666), (940, 33833), (1081, 29420), (1471, 21620), (2162, 14710), (2942, 10810), (4324, 7355), (5405, 5884)]