81716968

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{541}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 156096000

約数和(自身を除く): 74379032

約数列:

[1, 2, 4, 8, 79, 158, 239, 316, 478, 541, 632, 956, 1082, 1912, 2164, 4328, 18881, 37762, 42739, 75524, 85478, 129299, 151048, 170956, 258598, 341912, 517196, 1034392, 10214621, 20429242, 40858484, 81716968]

約数ペア:

[(1, 81716968), (2, 40858484), (4, 20429242), (8, 10214621), (79, 1034392), (158, 517196), (239, 341912), (316, 258598), (478, 170956), (541, 151048), (632, 129299), (956, 85478), (1082, 75524), (1912, 42739), (2164, 37762), (4328, 18881)]