81308080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{145193}}^1$

素因数の和:145213

約数の個数: 40

約数和(自身を含む): 216048672

約数和(自身を除く): 134740592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 145193, 290386, 580772, 725965, 1016351, 1161544, 1451930, 2032702, 2323088, 2903860, 4065404, 5081755, 5807720, 8130808, 10163510, 11615440, 16261616, 20327020, 40654040, 81308080]

約数ペア:

[(1, 81308080), (2, 40654040), (4, 20327020), (5, 16261616), (7, 11615440), (8, 10163510), (10, 8130808), (14, 5807720), (16, 5081755), (20, 4065404), (28, 2903860), (35, 2323088), (40, 2032702), (56, 1451930), (70, 1161544), (80, 1016351), (112, 725965), (140, 580772), (280, 290386), (560, 145193)]