19919280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82997}}^1$

素因数の和:83013

約数の個数: 40

約数和(自身を含む): 61750512

約数和(自身を除く): 41831232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82997, 165994, 248991, 331988, 414985, 497982, 663976, 829970, 995964, 1244955, 1327952, 1659940, 1991928, 2489910, 3319880, 3983856, 4979820, 6639760, 9959640, 19919280]

約数ペア:

[(1, 19919280), (2, 9959640), (3, 6639760), (4, 4979820), (5, 3983856), (6, 3319880), (8, 2489910), (10, 1991928), (12, 1659940), (15, 1327952), (16, 1244955), (20, 995964), (24, 829970), (30, 663976), (40, 497982), (48, 414985), (60, 331988), (80, 248991), (120, 165994), (240, 82997)]