3978478

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 7188480

約数和(自身を除く): 3210002

約数列:

[1, 2, 7, 14, 31, 62, 89, 103, 178, 206, 217, 434, 623, 721, 1246, 1442, 2759, 3193, 5518, 6386, 9167, 18334, 19313, 22351, 38626, 44702, 64169, 128338, 284177, 568354, 1989239, 3978478]

約数ペア:

[(1, 3978478), (2, 1989239), (7, 568354), (14, 284177), (31, 128338), (62, 64169), (89, 44702), (103, 38626), (178, 22351), (206, 19313), (217, 18334), (434, 9167), (623, 6386), (721, 5518), (1246, 3193), (1442, 2759)]