19764280

素因数分解:

$2^3\times 5^1\times {\mathrm{494107}}^1$

素因数の和:494118

約数の個数: 16

約数和(自身を含む): 44469720

約数和(自身を除く): 24705440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 494107, 988214, 1976428, 2470535, 3952856, 4941070, 9882140, 19764280]

約数ペア:

[(1, 19764280), (2, 9882140), (4, 4941070), (5, 3952856), (8, 2470535), (10, 1976428), (20, 988214), (40, 494107)]