81756430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61471}}^1$

素因数の和:61504

約数の個数: 32

約数和(自身を含む): 177039360

約数和(自身を除く): 95282930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 61471, 122942, 307355, 430297, 614710, 860594, 1167949, 2151485, 2335898, 4302970, 5839745, 8175643, 11679490, 16351286, 40878215, 81756430]

約数ペア:

[(1, 81756430), (2, 40878215), (5, 16351286), (7, 11679490), (10, 8175643), (14, 5839745), (19, 4302970), (35, 2335898), (38, 2151485), (70, 1167949), (95, 860594), (133, 614710), (190, 430297), (266, 307355), (665, 122942), (1330, 61471)]