2278860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 6720000

約数和(自身を除く): 4441140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 1999, 3998, 5997, 7996, 9995, 11994, 19990, 23988, 29985, 37981, 39980, 59970, 75962, 113943, 119940, 151924, 189905, 227886, 379810, 455772, 569715, 759620, 1139430, 2278860]

約数ペア:

[(1, 2278860), (2, 1139430), (3, 759620), (4, 569715), (5, 455772), (6, 379810), (10, 227886), (12, 189905), (15, 151924), (19, 119940), (20, 113943), (30, 75962), (38, 59970), (57, 39980), (60, 37981), (76, 29985), (95, 23988), (114, 19990), (190, 11994), (228, 9995), (285, 7996), (380, 5997), (570, 3998), (1140, 1999)]