19800250

素因数分解:

$2^1\times 5^3\times {\mathrm{79201}}^1$

素因数の和:79218

約数の個数: 16

約数和(自身を含む): 37066536

約数和(自身を除く): 17266286

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 79201, 158402, 396005, 792010, 1980025, 3960050, 9900125, 19800250]

約数ペア:

[(1, 19800250), (2, 9900125), (5, 3960050), (10, 1980025), (25, 792010), (50, 396005), (125, 158402), (250, 79201)]