18361900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1321}}^1$

素因数の和:1474

約数の個数: 36

約数和(自身を含む): 40162360

約数和(自身を除く): 21800460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1321, 1390, 2642, 2780, 3475, 5284, 6605, 6950, 13210, 13900, 26420, 33025, 66050, 132100, 183619, 367238, 734476, 918095, 1836190, 3672380, 4590475, 9180950, 18361900]

約数ペア:

[(1, 18361900), (2, 9180950), (4, 4590475), (5, 3672380), (10, 1836190), (20, 918095), (25, 734476), (50, 367238), (100, 183619), (139, 132100), (278, 66050), (556, 33025), (695, 26420), (1321, 13900), (1390, 13210), (2642, 6950), (2780, 6605), (3475, 5284)]