156928681

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 198696960

約数和(自身を除く): 41768279

約数列:

[1, 7, 13, 79, 83, 91, 263, 553, 581, 1027, 1079, 1841, 3419, 6557, 7189, 7553, 20777, 21829, 23933, 45899, 85241, 145439, 152803, 270101, 283777, 596687, 1724491, 1890707, 1986439, 12071437, 22418383, 156928681]

約数ペア:

[(1, 156928681), (7, 22418383), (13, 12071437), (79, 1986439), (83, 1890707), (91, 1724491), (263, 596687), (553, 283777), (581, 270101), (1027, 152803), (1079, 145439), (1841, 85241), (3419, 45899), (6557, 23933), (7189, 21829), (7553, 20777)]