16506220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 19781780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 149, 191, 290, 298, 382, 580, 596, 745, 764, 955, 1490, 1910, 2980, 3820, 4321, 5539, 8642, 11078, 17284, 21605, 22156, 27695, 28459, 43210, 55390, 56918, 86420, 110780, 113836, 142295, 284590, 569180, 825311, 1650622, 3301244, 4126555, 8253110, 16506220]

約数ペア:

[(1, 16506220), (2, 8253110), (4, 4126555), (5, 3301244), (10, 1650622), (20, 825311), (29, 569180), (58, 284590), (116, 142295), (145, 113836), (149, 110780), (191, 86420), (290, 56918), (298, 55390), (382, 43210), (580, 28459), (596, 27695), (745, 22156), (764, 21605), (955, 17284), (1490, 11078), (1910, 8642), (2980, 5539), (3820, 4321)]