188768420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1087}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 418575360

約数和(自身を除く): 229806940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 457, 914, 1087, 1828, 2174, 2285, 4348, 4570, 5435, 8683, 9140, 10870, 17366, 20653, 21740, 34732, 41306, 43415, 82612, 86830, 103265, 173660, 206530, 413060, 496759, 993518, 1987036, 2483795, 4967590, 9438421, 9935180, 18876842, 37753684, 47192105, 94384210, 188768420]

約数ペア:

[(1, 188768420), (2, 94384210), (4, 47192105), (5, 37753684), (10, 18876842), (19, 9935180), (20, 9438421), (38, 4967590), (76, 2483795), (95, 1987036), (190, 993518), (380, 496759), (457, 413060), (914, 206530), (1087, 173660), (1828, 103265), (2174, 86830), (2285, 82612), (4348, 43415), (4570, 41306), (5435, 34732), (8683, 21740), (9140, 20653), (10870, 17366)]