81881296

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19759}}^1$

素因数の和:19811

約数の個数: 40

約数和(自身を含む): 186218240

約数和(自身を除く): 104336944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 19759, 39518, 79036, 138313, 158072, 276626, 316144, 553252, 731083, 1106504, 1462166, 2213008, 2924332, 5117581, 5848664, 10235162, 11697328, 20470324, 40940648, 81881296]

約数ペア:

[(1, 81881296), (2, 40940648), (4, 20470324), (7, 11697328), (8, 10235162), (14, 5848664), (16, 5117581), (28, 2924332), (37, 2213008), (56, 1462166), (74, 1106504), (112, 731083), (148, 553252), (259, 316144), (296, 276626), (518, 158072), (592, 138313), (1036, 79036), (2072, 39518), (4144, 19759)]