161657775

素因数分解:

$3^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{823}}^1$

素因数の和:942

約数の個数: 60

約数和(自身を含む): 302900752

約数和(自身を除く): 141242977

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 97, 135, 225, 291, 405, 485, 675, 823, 873, 1455, 2025, 2425, 2469, 2619, 4115, 4365, 7275, 7407, 7857, 12345, 13095, 20575, 21825, 22221, 37035, 39285, 61725, 65475, 66663, 79831, 111105, 185175, 196425, 239493, 333315, 399155, 555525, 718479, 1197465, 1666575, 1995775, 2155437, 3592395, 5987325, 6466311, 10777185, 17961975, 32331555, 53885925, 161657775]

約数ペア:

[(1, 161657775), (3, 53885925), (5, 32331555), (9, 17961975), (15, 10777185), (25, 6466311), (27, 5987325), (45, 3592395), (75, 2155437), (81, 1995775), (97, 1666575), (135, 1197465), (225, 718479), (291, 555525), (405, 399155), (485, 333315), (675, 239493), (823, 196425), (873, 185175), (1455, 111105), (2025, 79831), (2425, 66663), (2469, 65475), (2619, 61725), (4115, 39285), (4365, 37035), (7275, 22221), (7407, 21825), (7857, 20575), (12345, 13095)]