77790820

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{4507}}^1$

素因数の和:5379

約数の個数: 24

約数和(自身を含む): 163586304

約数和(自身を除く): 85795484

約数列:

[1, 2, 4, 5, 10, 20, 863, 1726, 3452, 4315, 4507, 8630, 9014, 17260, 18028, 22535, 45070, 90140, 3889541, 7779082, 15558164, 19447705, 38895410, 77790820]

約数ペア:

[(1, 77790820), (2, 38895410), (4, 19447705), (5, 15558164), (10, 7779082), (20, 3889541), (863, 90140), (1726, 45070), (3452, 22535), (4315, 18028), (4507, 17260), (8630, 9014)]