42654520

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2137}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 96210000

約数和(自身を除く): 53555480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2137, 2495, 3992, 4274, 4990, 8548, 9980, 10685, 17096, 19960, 21370, 42740, 85480, 1066363, 2132726, 4265452, 5331815, 8530904, 10663630, 21327260, 42654520]

約数ペア:

[(1, 42654520), (2, 21327260), (4, 10663630), (5, 8530904), (8, 5331815), (10, 4265452), (20, 2132726), (40, 1066363), (499, 85480), (998, 42740), (1996, 21370), (2137, 19960), (2495, 17096), (3992, 10685), (4274, 9980), (4990, 8548)]