19540100

素因数分解:

$2^2\times 5^2\times {\mathrm{195401}}^1$

素因数の和:195415

約数の個数: 18

約数和(自身を含む): 42402234

約数和(自身を除く): 22862134

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 195401, 390802, 781604, 977005, 1954010, 3908020, 4885025, 9770050, 19540100]

約数ペア:

[(1, 19540100), (2, 9770050), (4, 4885025), (5, 3908020), (10, 1954010), (20, 977005), (25, 781604), (50, 390802), (100, 195401)]