20225900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{787}}^1$

素因数の和:1058

約数の個数: 36

約数和(自身を含む): 44116968

約数和(自身を除く): 23891068

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 787, 1028, 1285, 1574, 2570, 3148, 3935, 5140, 6425, 7870, 12850, 15740, 19675, 25700, 39350, 78700, 202259, 404518, 809036, 1011295, 2022590, 4045180, 5056475, 10112950, 20225900]

約数ペア:

[(1, 20225900), (2, 10112950), (4, 5056475), (5, 4045180), (10, 2022590), (20, 1011295), (25, 809036), (50, 404518), (100, 202259), (257, 78700), (514, 39350), (787, 25700), (1028, 19675), (1285, 15740), (1574, 12850), (2570, 7870), (3148, 6425), (3935, 5140)]