78670760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{280967}}^1$

素因数の和:280985

約数の個数: 32

約数和(自身を含む): 202296960

約数和(自身を除く): 123626200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 280967, 561934, 1123868, 1404835, 1966769, 2247736, 2809670, 3933538, 5619340, 7867076, 9833845, 11238680, 15734152, 19667690, 39335380, 78670760]

約数ペア:

[(1, 78670760), (2, 39335380), (4, 19667690), (5, 15734152), (7, 11238680), (8, 9833845), (10, 7867076), (14, 5619340), (20, 3933538), (28, 2809670), (35, 2247736), (40, 1966769), (56, 1404835), (70, 1123868), (140, 561934), (280, 280967)]