20809590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1999}}^1$

素因数の和:2356

約数の個数: 32

約数和(自身を含む): 50112000

約数和(自身を除く): 29302410

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 347, 694, 1041, 1735, 1999, 2082, 3470, 3998, 5205, 5997, 9995, 10410, 11994, 19990, 29985, 59970, 693653, 1387306, 2080959, 3468265, 4161918, 6936530, 10404795, 20809590]

約数ペア:

[(1, 20809590), (2, 10404795), (3, 6936530), (5, 4161918), (6, 3468265), (10, 2080959), (15, 1387306), (30, 693653), (347, 59970), (694, 29985), (1041, 19990), (1735, 11994), (1999, 10410), (2082, 9995), (3470, 5997), (3998, 5205)]