28162120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4373}}^1$

素因数の和:4414

約数の個数: 64

約数和(自身を含む): 75582720

約数和(自身を除く): 47420600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 4373, 6440, 8746, 17492, 21865, 30611, 34984, 43730, 61222, 87460, 100579, 122444, 153055, 174920, 201158, 244888, 306110, 402316, 502895, 612220, 704053, 804632, 1005790, 1224440, 1408106, 2011580, 2816212, 3520265, 4023160, 5632424, 7040530, 14081060, 28162120]

約数ペア:

[(1, 28162120), (2, 14081060), (4, 7040530), (5, 5632424), (7, 4023160), (8, 3520265), (10, 2816212), (14, 2011580), (20, 1408106), (23, 1224440), (28, 1005790), (35, 804632), (40, 704053), (46, 612220), (56, 502895), (70, 402316), (92, 306110), (115, 244888), (140, 201158), (161, 174920), (184, 153055), (230, 122444), (280, 100579), (322, 87460), (460, 61222), (644, 43730), (805, 34984), (920, 30611), (1288, 21865), (1610, 17492), (3220, 8746), (4373, 6440)]