12819380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 31868928

約数和(自身を除く): 19049548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 127, 140, 196, 206, 245, 254, 412, 490, 508, 515, 635, 721, 889, 980, 1030, 1270, 1442, 1778, 2060, 2540, 2884, 3556, 3605, 4445, 5047, 6223, 7210, 8890, 10094, 12446, 13081, 14420, 17780, 20188, 24892, 25235, 26162, 31115, 50470, 52324, 62230, 65405, 91567, 100940, 124460, 130810, 183134, 261620, 366268, 457835, 640969, 915670, 1281938, 1831340, 2563876, 3204845, 6409690, 12819380]

約数ペア:

[(1, 12819380), (2, 6409690), (4, 3204845), (5, 2563876), (7, 1831340), (10, 1281938), (14, 915670), (20, 640969), (28, 457835), (35, 366268), (49, 261620), (70, 183134), (98, 130810), (103, 124460), (127, 100940), (140, 91567), (196, 65405), (206, 62230), (245, 52324), (254, 50470), (412, 31115), (490, 26162), (508, 25235), (515, 24892), (635, 20188), (721, 17780), (889, 14420), (980, 13081), (1030, 12446), (1270, 10094), (1442, 8890), (1778, 7210), (2060, 6223), (2540, 5047), (2884, 4445), (3556, 3605)]