209301875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19699}}^1$

素因数の和:19736

約数の個数: 20

約数和(自身を含む): 276942600

約数和(自身を除く): 67640725

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 2125, 10625, 19699, 98495, 334883, 492475, 1674415, 2462375, 8372075, 12311875, 41860375, 209301875]

約数ペア:

[(1, 209301875), (5, 41860375), (17, 12311875), (25, 8372075), (85, 2462375), (125, 1674415), (425, 492475), (625, 334883), (2125, 98495), (10625, 19699)]