18910160

素因数分解:

$2^4\times 5^1\times {\mathrm{236377}}^1$

素因数の和:236390

約数の個数: 20

約数和(自身を含む): 43966308

約数和(自身を除く): 25056148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236377, 472754, 945508, 1181885, 1891016, 2363770, 3782032, 4727540, 9455080, 18910160]

約数ペア:

[(1, 18910160), (2, 9455080), (4, 4727540), (5, 3782032), (8, 2363770), (10, 1891016), (16, 1181885), (20, 945508), (40, 472754), (80, 236377)]