20698850

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 20548510

約数列:

[1, 2, 5, 10, 23, 25, 41, 46, 50, 82, 115, 205, 230, 410, 439, 575, 878, 943, 1025, 1150, 1886, 2050, 2195, 4390, 4715, 9430, 10097, 10975, 17999, 20194, 21950, 23575, 35998, 47150, 50485, 89995, 100970, 179990, 252425, 413977, 449975, 504850, 827954, 899950, 2069885, 4139770, 10349425, 20698850]

約数ペア:

[(1, 20698850), (2, 10349425), (5, 4139770), (10, 2069885), (23, 899950), (25, 827954), (41, 504850), (46, 449975), (50, 413977), (82, 252425), (115, 179990), (205, 100970), (230, 89995), (410, 50485), (439, 47150), (575, 35998), (878, 23575), (943, 21950), (1025, 20194), (1150, 17999), (1886, 10975), (2050, 10097), (2195, 9430), (4390, 4715)]