7957740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18947}}^1$

素因数の和:18966

約数の個数: 48

約数和(自身を含む): 25466112

約数和(自身を除く): 17508372

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, 18947, 37894, 56841, 75788, 94735, 113682, 132629, 189470, 227364, 265258, 284205, 378940, 397887, 530516, 568410, 663145, 795774, 1136820, 1326290, 1591548, 1989435, 2652580, 3978870, 7957740]

約数ペア:

[(1, 7957740), (2, 3978870), (3, 2652580), (4, 1989435), (5, 1591548), (6, 1326290), (7, 1136820), (10, 795774), (12, 663145), (14, 568410), (15, 530516), (20, 397887), (21, 378940), (28, 284205), (30, 265258), (35, 227364), (42, 189470), (60, 132629), (70, 113682), (84, 94735), (105, 75788), (140, 56841), (210, 37894), (420, 18947)]