77987240

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{2897}}^1$

素因数の和:3581

約数の個数: 32

約数和(自身を含む): 175792680

約数和(自身を除く): 97805440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 1346, 2692, 2897, 3365, 5384, 5794, 6730, 11588, 13460, 14485, 23176, 26920, 28970, 57940, 115880, 1949681, 3899362, 7798724, 9748405, 15597448, 19496810, 38993620, 77987240]

約数ペア:

[(1, 77987240), (2, 38993620), (4, 19496810), (5, 15597448), (8, 9748405), (10, 7798724), (20, 3899362), (40, 1949681), (673, 115880), (1346, 57940), (2692, 28970), (2897, 26920), (3365, 23176), (5384, 14485), (5794, 13460), (6730, 11588)]