980020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2607

約数の個数: 24

約数和(自身を含む): 2167200

約数和(自身を除く): 1187180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2579, 5158, 10316, 12895, 25790, 49001, 51580, 98002, 196004, 245005, 490010, 980020]

約数ペア:

[(1, 980020), (2, 490010), (4, 245005), (5, 196004), (10, 98002), (19, 51580), (20, 49001), (38, 25790), (76, 12895), (95, 10316), (190, 5158), (380, 2579)]