28957740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68947}}^1$

素因数の和:68966

約数の個数: 48

約数和(自身を含む): 92666112

約数和(自身を除く): 63708372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68947, 137894, 206841, 275788, 344735, 413682, 482629, 689470, 827364, 965258, 1034205, 1378940, 1447887, 1930516, 2068410, 2413145, 2895774, 4136820, 4826290, 5791548, 7239435, 9652580, 14478870, 28957740]

約数ペア:

[(1, 28957740), (2, 14478870), (3, 9652580), (4, 7239435), (5, 5791548), (6, 4826290), (7, 4136820), (10, 2895774), (12, 2413145), (14, 2068410), (15, 1930516), (20, 1447887), (21, 1378940), (28, 1034205), (30, 965258), (35, 827364), (42, 689470), (60, 482629), (70, 413682), (84, 344735), (105, 275788), (140, 206841), (210, 137894), (420, 68947)]