79989020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{54787}}^1$

素因数の和:54869

約数の個数: 24

約数和(自身を含む): 170281104

約数和(自身を除く): 90292084

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 54787, 109574, 219148, 273935, 547870, 1095740, 3999451, 7998902, 15997804, 19997255, 39994510, 79989020]

約数ペア:

[(1, 79989020), (2, 39994510), (4, 19997255), (5, 15997804), (10, 7998902), (20, 3999451), (73, 1095740), (146, 547870), (292, 273935), (365, 219148), (730, 109574), (1460, 54787)]