129420020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{340579}}^1$

素因数の和:340607

約数の個数: 24

約数和(自身を含む): 286087200

約数和(自身を除く): 156667180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 340579, 681158, 1362316, 1702895, 3405790, 6471001, 6811580, 12942002, 25884004, 32355005, 64710010, 129420020]

約数ペア:

[(1, 129420020), (2, 64710010), (4, 32355005), (5, 25884004), (10, 12942002), (19, 6811580), (20, 6471001), (38, 3405790), (76, 1702895), (95, 1362316), (190, 681158), (380, 340579)]