15945040

素因数分解:

$2^4\times 5^1\times {\mathrm{199313}}^1$

素因数の和:199326

約数の個数: 20

約数和(自身を含む): 37072404

約数和(自身を除く): 21127364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199313, 398626, 797252, 996565, 1594504, 1993130, 3189008, 3986260, 7972520, 15945040]

約数ペア:

[(1, 15945040), (2, 7972520), (4, 3986260), (5, 3189008), (8, 1993130), (10, 1594504), (16, 996565), (20, 797252), (40, 398626), (80, 199313)]