4080345040

素因数分解:

$2^4\times 5^1\times {\mathrm{51004313}}^1$

素因数の和:51004326

約数の個数: 20

約数和(自身を含む): 9486802404

約数和(自身を除く): 5406457364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 51004313, 102008626, 204017252, 255021565, 408034504, 510043130, 816069008, 1020086260, 2040172520, 4080345040]

約数ペア:

[(1, 4080345040), (2, 2040172520), (4, 1020086260), (5, 816069008), (8, 510043130), (10, 408034504), (16, 255021565), (20, 204017252), (40, 102008626), (80, 51004313)]