2018780020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5312579}}^1$

素因数の和:5312607

約数の個数: 24

約数和(自身を含む): 4462567200

約数和(自身を除く): 2443787180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5312579, 10625158, 21250316, 26562895, 53125790, 100939001, 106251580, 201878002, 403756004, 504695005, 1009390010, 2018780020]

約数ペア:

[(1, 2018780020), (2, 1009390010), (4, 504695005), (5, 403756004), (10, 201878002), (19, 106251580), (20, 100939001), (38, 53125790), (76, 26562895), (95, 21250316), (190, 10625158), (380, 5312579)]