28194180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67129}}^1$

素因数の和:67148

約数の個数: 48

約数和(自身を含む): 90222720

約数和(自身を除く): 62028540

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, 67129, 134258, 201387, 268516, 335645, 402774, 469903, 671290, 805548, 939806, 1006935, 1342580, 1409709, 1879612, 2013870, 2349515, 2819418, 4027740, 4699030, 5638836, 7048545, 9398060, 14097090, 28194180]

約数ペア:

[(1, 28194180), (2, 14097090), (3, 9398060), (4, 7048545), (5, 5638836), (6, 4699030), (7, 4027740), (10, 2819418), (12, 2349515), (14, 2013870), (15, 1879612), (20, 1409709), (21, 1342580), (28, 1006935), (30, 939806), (35, 805548), (42, 671290), (60, 469903), (70, 402774), (84, 335645), (105, 268516), (140, 201387), (210, 134258), (420, 67129)]