68979890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13499}}^1$

素因数の和:13586

約数の個数: 32

約数和(自身を含む): 143856000

約数和(自身を除く): 74876110

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 5110, 13499, 26998, 67495, 94493, 134990, 188986, 472465, 944930, 985427, 1970854, 4927135, 6897989, 9854270, 13795978, 34489945, 68979890]

約数ペア:

[(1, 68979890), (2, 34489945), (5, 13795978), (7, 9854270), (10, 6897989), (14, 4927135), (35, 1970854), (70, 985427), (73, 944930), (146, 472465), (365, 188986), (511, 134990), (730, 94493), (1022, 67495), (2555, 26998), (5110, 13499)]