99889000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 252046080

約数和(自身を除く): 152157080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 43, 46, 50, 86, 92, 100, 101, 115, 125, 172, 184, 200, 202, 215, 230, 250, 344, 404, 430, 460, 500, 505, 575, 808, 860, 920, 989, 1000, 1010, 1075, 1150, 1720, 1978, 2020, 2150, 2300, 2323, 2525, 2875, 3956, 4040, 4300, 4343, 4600, 4646, 4945, 5050, 5375, 5750, 7912, 8600, 8686, 9292, 9890, 10100, 10750, 11500, 11615, 12625, 17372, 18584, 19780, 20200, 21500, 21715, 23000, 23230, 24725, 25250, 34744, 39560, 43000, 43430, 46460, 49450, 50500, 58075, 86860, 92920, 98900, 99889, 101000, 108575, 116150, 123625, 173720, 197800, 199778, 217150, 232300, 247250, 290375, 399556, 434300, 464600, 494500, 499445, 542875, 580750, 799112, 868600, 989000, 998890, 1085750, 1161500, 1997780, 2171500, 2323000, 2497225, 3995560, 4343000, 4994450, 9988900, 12486125, 19977800, 24972250, 49944500, 99889000]

約数ペア:

[(1, 99889000), (2, 49944500), (4, 24972250), (5, 19977800), (8, 12486125), (10, 9988900), (20, 4994450), (23, 4343000), (25, 3995560), (40, 2497225), (43, 2323000), (46, 2171500), (50, 1997780), (86, 1161500), (92, 1085750), (100, 998890), (101, 989000), (115, 868600), (125, 799112), (172, 580750), (184, 542875), (200, 499445), (202, 494500), (215, 464600), (230, 434300), (250, 399556), (344, 290375), (404, 247250), (430, 232300), (460, 217150), (500, 199778), (505, 197800), (575, 173720), (808, 123625), (860, 116150), (920, 108575), (989, 101000), (1000, 99889), (1010, 98900), (1075, 92920), (1150, 86860), (1720, 58075), (1978, 50500), (2020, 49450), (2150, 46460), (2300, 43430), (2323, 43000), (2525, 39560), (2875, 34744), (3956, 25250), (4040, 24725), (4300, 23230), (4343, 23000), (4600, 21715), (4646, 21500), (4945, 20200), (5050, 19780), (5375, 18584), (5750, 17372), (7912, 12625), (8600, 11615), (8686, 11500), (9292, 10750), (9890, 10100)]