18299080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10639}}^1$

素因数の和:10693

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 23835320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10639, 21278, 42556, 53195, 85112, 106390, 212780, 425560, 457477, 914954, 1829908, 2287385, 3659816, 4574770, 9149540, 18299080]

約数ペア:

[(1, 18299080), (2, 9149540), (4, 4574770), (5, 3659816), (8, 2287385), (10, 1829908), (20, 914954), (40, 457477), (43, 425560), (86, 212780), (172, 106390), (215, 85112), (344, 53195), (430, 42556), (860, 21278), (1720, 10639)]