51712240

素因数分解:

$2^4\times 5^1\times {\mathrm{646403}}^1$

素因数の和:646416

約数の個数: 20

約数和(自身を含む): 120231144

約数和(自身を除く): 68518904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 646403, 1292806, 2585612, 3232015, 5171224, 6464030, 10342448, 12928060, 25856120, 51712240]

約数ペア:

[(1, 51712240), (2, 25856120), (4, 12928060), (5, 10342448), (8, 6464030), (10, 5171224), (16, 3232015), (20, 2585612), (40, 1292806), (80, 646403)]