18643360

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1193

約数の個数: 48

約数和(自身を含む): 44490600

約数和(自身を除く): 25847240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1069, 1090, 1744, 2138, 2180, 3488, 4276, 4360, 5345, 8552, 8720, 10690, 17104, 17440, 21380, 34208, 42760, 85520, 116521, 171040, 233042, 466084, 582605, 932168, 1165210, 1864336, 2330420, 3728672, 4660840, 9321680, 18643360]

約数ペア:

[(1, 18643360), (2, 9321680), (4, 4660840), (5, 3728672), (8, 2330420), (10, 1864336), (16, 1165210), (20, 932168), (32, 582605), (40, 466084), (80, 233042), (109, 171040), (160, 116521), (218, 85520), (436, 42760), (545, 34208), (872, 21380), (1069, 17440), (1090, 17104), (1744, 10690), (2138, 8720), (2180, 8552), (3488, 5345), (4276, 4360)]