80796880

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1013}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 188226792

約数和(自身を除く): 107429912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1013, 1994, 2026, 3988, 4052, 4985, 5065, 7976, 8104, 9970, 10130, 15952, 16208, 19940, 20260, 39880, 40520, 79760, 81040, 1009961, 2019922, 4039844, 5049805, 8079688, 10099610, 16159376, 20199220, 40398440, 80796880]

約数ペア:

[(1, 80796880), (2, 40398440), (4, 20199220), (5, 16159376), (8, 10099610), (10, 8079688), (16, 5049805), (20, 4039844), (40, 2019922), (80, 1009961), (997, 81040), (1013, 79760), (1994, 40520), (2026, 39880), (3988, 20260), (4052, 19940), (4985, 16208), (5065, 15952), (7976, 10130), (8104, 9970)]