87960680

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5653}}^1$

素因数の和:6053

約数の個数: 32

約数和(自身を含む): 198455400

約数和(自身を除く): 110494720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 5653, 7780, 11306, 15560, 22612, 28265, 45224, 56530, 113060, 226120, 2199017, 4398034, 8796068, 10995085, 17592136, 21990170, 43980340, 87960680]

約数ペア:

[(1, 87960680), (2, 43980340), (4, 21990170), (5, 17592136), (8, 10995085), (10, 8796068), (20, 4398034), (40, 2199017), (389, 226120), (778, 113060), (1556, 56530), (1945, 45224), (3112, 28265), (3890, 22612), (5653, 15560), (7780, 11306)]