4400020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11579}}^1$

素因数の和:11607

約数の個数: 24

約数和(自身を含む): 9727200

約数和(自身を除く): 5327180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 11579, 23158, 46316, 57895, 115790, 220001, 231580, 440002, 880004, 1100005, 2200010, 4400020]

約数ペア:

[(1, 4400020), (2, 2200010), (4, 1100005), (5, 880004), (10, 440002), (19, 231580), (20, 220001), (38, 115790), (76, 57895), (95, 46316), (190, 23158), (380, 11579)]