21925480

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4001}}^1$

素因数の和:4149

約数の個数: 32

約数和(自身を含む): 49704840

約数和(自身を除く): 27779360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 4001, 5480, 8002, 16004, 20005, 32008, 40010, 80020, 160040, 548137, 1096274, 2192548, 2740685, 4385096, 5481370, 10962740, 21925480]

約数ペア:

[(1, 21925480), (2, 10962740), (4, 5481370), (5, 4385096), (8, 2740685), (10, 2192548), (20, 1096274), (40, 548137), (137, 160040), (274, 80020), (548, 40010), (685, 32008), (1096, 20005), (1370, 16004), (2740, 8002), (4001, 5480)]