71991388

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{4127}}^1$

素因数の和:4234

約数の個数: 36

約数和(自身を含む): 148236480

約数和(自身を除く): 76245092

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1246, 2492, 4127, 4361, 8254, 8722, 16508, 17444, 28889, 57778, 115556, 202223, 367303, 404446, 734606, 808892, 1469212, 2571121, 5142242, 10284484, 17997847, 35995694, 71991388]

約数ペア:

[(1, 71991388), (2, 35995694), (4, 17997847), (7, 10284484), (14, 5142242), (28, 2571121), (49, 1469212), (89, 808892), (98, 734606), (178, 404446), (196, 367303), (356, 202223), (623, 115556), (1246, 57778), (2492, 28889), (4127, 17444), (4361, 16508), (8254, 8722)]