20430160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5939}}^1$

素因数の和:5995

約数の個数: 40

約数和(自身を含む): 48612960

約数和(自身を除く): 28182800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5939, 11878, 23756, 29695, 47512, 59390, 95024, 118780, 237560, 255377, 475120, 510754, 1021508, 1276885, 2043016, 2553770, 4086032, 5107540, 10215080, 20430160]

約数ペア:

[(1, 20430160), (2, 10215080), (4, 5107540), (5, 4086032), (8, 2553770), (10, 2043016), (16, 1276885), (20, 1021508), (40, 510754), (43, 475120), (80, 255377), (86, 237560), (172, 118780), (215, 95024), (344, 59390), (430, 47512), (688, 29695), (860, 23756), (1720, 11878), (3440, 5939)]