19585040

素因数分解:

$2^4\times 5^1\times {\mathrm{244813}}^1$

素因数の和:244826

約数の個数: 20

約数和(自身を含む): 45535404

約数和(自身を除く): 25950364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244813, 489626, 979252, 1224065, 1958504, 2448130, 3917008, 4896260, 9792520, 19585040]

約数ペア:

[(1, 19585040), (2, 9792520), (4, 4896260), (5, 3917008), (8, 2448130), (10, 1958504), (16, 1224065), (20, 979252), (40, 489626), (80, 244813)]