20654490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40499}}^1$

素因数の和:40526

約数の個数: 32

約数和(自身を含む): 52488000

約数和(自身を除く): 31833510

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40499, 80998, 121497, 202495, 242994, 404990, 607485, 688483, 1214970, 1376966, 2065449, 3442415, 4130898, 6884830, 10327245, 20654490]

約数ペア:

[(1, 20654490), (2, 10327245), (3, 6884830), (5, 4130898), (6, 3442415), (10, 2065449), (15, 1376966), (17, 1214970), (30, 688483), (34, 607485), (51, 404990), (85, 242994), (102, 202495), (170, 121497), (255, 80998), (510, 40499)]