2515990

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{809}}^1$

素因数の和:1127

約数の個数: 16

約数和(自身を含む): 4548960

約数和(自身を除く): 2032970

約数列:

[1, 2, 5, 10, 311, 622, 809, 1555, 1618, 3110, 4045, 8090, 251599, 503198, 1257995, 2515990]

約数ペア:

[(1, 2515990), (2, 1257995), (5, 503198), (10, 251599), (311, 8090), (622, 4045), (809, 3110), (1555, 1618)]