20553620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33151}}^1$

素因数の和:33191

約数の個数: 24

約数和(自身を含む): 44556288

約数和(自身を除く): 24002668

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33151, 66302, 132604, 165755, 331510, 663020, 1027681, 2055362, 4110724, 5138405, 10276810, 20553620]

約数ペア:

[(1, 20553620), (2, 10276810), (4, 5138405), (5, 4110724), (10, 2055362), (20, 1027681), (31, 663020), (62, 331510), (124, 165755), (155, 132604), (310, 66302), (620, 33151)]