78318716

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20123}}^1$

素因数の和:20273

約数の個数: 24

約数和(自身を含む): 157772160

約数和(自身を除く): 79453444

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20123, 40246, 80492, 140861, 281722, 563444, 2797097, 5594194, 11188388, 19579679, 39159358, 78318716]

約数ペア:

[(1, 78318716), (2, 39159358), (4, 19579679), (7, 11188388), (14, 5594194), (28, 2797097), (139, 563444), (278, 281722), (556, 140861), (973, 80492), (1946, 40246), (3892, 20123)]