208460020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{548579}}^1$

素因数の和:548607

約数の個数: 24

約数和(自身を含む): 460807200

約数和(自身を除く): 252347180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 548579, 1097158, 2194316, 2742895, 5485790, 10423001, 10971580, 20846002, 41692004, 52115005, 104230010, 208460020]

約数ペア:

[(1, 208460020), (2, 104230010), (4, 52115005), (5, 41692004), (10, 20846002), (19, 10971580), (20, 10423001), (38, 5485790), (76, 2742895), (95, 2194316), (190, 1097158), (380, 548579)]