209564080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{238141}}^1$

素因数の和:238165

約数の個数: 40

約数和(自身を含む): 531532944

約数和(自身を除く): 321968864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 238141, 476282, 952564, 1190705, 1905128, 2381410, 2619551, 3810256, 4762820, 5239102, 9525640, 10478204, 13097755, 19051280, 20956408, 26195510, 41912816, 52391020, 104782040, 209564080]

約数ペア:

[(1, 209564080), (2, 104782040), (4, 52391020), (5, 41912816), (8, 26195510), (10, 20956408), (11, 19051280), (16, 13097755), (20, 10478204), (22, 9525640), (40, 5239102), (44, 4762820), (55, 3810256), (80, 2619551), (88, 2381410), (110, 1905128), (176, 1190705), (220, 952564), (440, 476282), (880, 238141)]