18945040

素因数分解:

$2^4\times 5^1\times {\mathrm{236813}}^1$

素因数の和:236826

約数の個数: 20

約数和(自身を含む): 44047404

約数和(自身を除く): 25102364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236813, 473626, 947252, 1184065, 1894504, 2368130, 3789008, 4736260, 9472520, 18945040]

約数ペア:

[(1, 18945040), (2, 9472520), (4, 4736260), (5, 3789008), (8, 2368130), (10, 1894504), (16, 1184065), (20, 947252), (40, 473626), (80, 236813)]