28135060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17807}}^1$

素因数の和:17895

約数の個数: 24

約数和(自身を含む): 59834880

約数和(自身を除く): 31699820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 17807, 35614, 71228, 89035, 178070, 356140, 1406753, 2813506, 5627012, 7033765, 14067530, 28135060]

約数ペア:

[(1, 28135060), (2, 14067530), (4, 7033765), (5, 5627012), (10, 2813506), (20, 1406753), (79, 356140), (158, 178070), (316, 89035), (395, 71228), (790, 35614), (1580, 17807)]