17989360

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2063}}^1$

素因数の和:2185

約数の個数: 40

約数和(自身を含む): 42229440

約数和(自身を除く): 24240080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2063, 2180, 4126, 4360, 8252, 8720, 10315, 16504, 20630, 33008, 41260, 82520, 165040, 224867, 449734, 899468, 1124335, 1798936, 2248670, 3597872, 4497340, 8994680, 17989360]

約数ペア:

[(1, 17989360), (2, 8994680), (4, 4497340), (5, 3597872), (8, 2248670), (10, 1798936), (16, 1124335), (20, 899468), (40, 449734), (80, 224867), (109, 165040), (218, 82520), (436, 41260), (545, 33008), (872, 20630), (1090, 16504), (1744, 10315), (2063, 8720), (2180, 8252), (4126, 4360)]