161238280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25037}}^1$

素因数の和:25078

約数の個数: 64

約数和(自身を含む): 432656640

約数和(自身を除く): 271418360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 25037, 50074, 100148, 125185, 175259, 200296, 250370, 350518, 500740, 575851, 701036, 876295, 1001480, 1151702, 1402072, 1752590, 2303404, 2879255, 3505180, 4030957, 4606808, 5758510, 7010360, 8061914, 11517020, 16123828, 20154785, 23034040, 32247656, 40309570, 80619140, 161238280]

約数ペア:

[(1, 161238280), (2, 80619140), (4, 40309570), (5, 32247656), (7, 23034040), (8, 20154785), (10, 16123828), (14, 11517020), (20, 8061914), (23, 7010360), (28, 5758510), (35, 4606808), (40, 4030957), (46, 3505180), (56, 2879255), (70, 2303404), (92, 1752590), (115, 1402072), (140, 1151702), (161, 1001480), (184, 876295), (230, 701036), (280, 575851), (322, 500740), (460, 350518), (644, 250370), (805, 200296), (920, 175259), (1288, 125185), (1610, 100148), (3220, 50074), (6440, 25037)]