80376440

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5011}}^1$

素因数の和:5423

約数の個数: 32

約数和(自身を含む): 181334160

約数和(自身を除く): 100957720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 5011, 8020, 10022, 16040, 20044, 25055, 40088, 50110, 100220, 200440, 2009411, 4018822, 8037644, 10047055, 16075288, 20094110, 40188220, 80376440]

約数ペア:

[(1, 80376440), (2, 40188220), (4, 20094110), (5, 16075288), (8, 10047055), (10, 8037644), (20, 4018822), (40, 2009411), (401, 200440), (802, 100220), (1604, 50110), (2005, 40088), (3208, 25055), (4010, 20044), (5011, 16040), (8020, 10022)]