7991120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 20034432

約数和(自身を除く): 12043312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 43, 46, 80, 86, 92, 101, 115, 172, 184, 202, 215, 230, 344, 368, 404, 430, 460, 505, 688, 808, 860, 920, 989, 1010, 1616, 1720, 1840, 1978, 2020, 2323, 3440, 3956, 4040, 4343, 4646, 4945, 7912, 8080, 8686, 9292, 9890, 11615, 15824, 17372, 18584, 19780, 21715, 23230, 34744, 37168, 39560, 43430, 46460, 69488, 79120, 86860, 92920, 99889, 173720, 185840, 199778, 347440, 399556, 499445, 799112, 998890, 1598224, 1997780, 3995560, 7991120]

約数ペア:

[(1, 7991120), (2, 3995560), (4, 1997780), (5, 1598224), (8, 998890), (10, 799112), (16, 499445), (20, 399556), (23, 347440), (40, 199778), (43, 185840), (46, 173720), (80, 99889), (86, 92920), (92, 86860), (101, 79120), (115, 69488), (172, 46460), (184, 43430), (202, 39560), (215, 37168), (230, 34744), (344, 23230), (368, 21715), (404, 19780), (430, 18584), (460, 17372), (505, 15824), (688, 11615), (808, 9890), (860, 9292), (920, 8686), (989, 8080), (1010, 7912), (1616, 4945), (1720, 4646), (1840, 4343), (1978, 4040), (2020, 3956), (2323, 3440)]