78867080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115981}}^1$

素因数の和:116009

約数の個数: 32

約数和(自身を含む): 187890840

約数和(自身を除く): 109023760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115981, 231962, 463924, 579905, 927848, 1159810, 1971677, 2319620, 3943354, 4639240, 7886708, 9858385, 15773416, 19716770, 39433540, 78867080]

約数ペア:

[(1, 78867080), (2, 39433540), (4, 19716770), (5, 15773416), (8, 9858385), (10, 7886708), (17, 4639240), (20, 3943354), (34, 2319620), (40, 1971677), (68, 1159810), (85, 927848), (136, 579905), (170, 463924), (340, 231962), (680, 115981)]