25553000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 68739840

約数和(自身を除く): 43186840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 25, 40, 44, 46, 50, 55, 88, 92, 100, 101, 110, 115, 125, 184, 200, 202, 220, 230, 250, 253, 275, 404, 440, 460, 500, 505, 506, 550, 575, 808, 920, 1000, 1010, 1012, 1100, 1111, 1150, 1265, 1375, 2020, 2024, 2200, 2222, 2300, 2323, 2525, 2530, 2750, 2875, 4040, 4444, 4600, 4646, 5050, 5060, 5500, 5555, 5750, 6325, 8888, 9292, 10100, 10120, 11000, 11110, 11500, 11615, 12625, 12650, 18584, 20200, 22220, 23000, 23230, 25250, 25300, 25553, 27775, 31625, 44440, 46460, 50500, 50600, 51106, 55550, 58075, 63250, 92920, 101000, 102212, 111100, 116150, 126500, 127765, 138875, 204424, 222200, 232300, 253000, 255530, 277750, 290375, 464600, 511060, 555500, 580750, 638825, 1022120, 1111000, 1161500, 1277650, 2323000, 2555300, 3194125, 5110600, 6388250, 12776500, 25553000]

約数ペア:

[(1, 25553000), (2, 12776500), (4, 6388250), (5, 5110600), (8, 3194125), (10, 2555300), (11, 2323000), (20, 1277650), (22, 1161500), (23, 1111000), (25, 1022120), (40, 638825), (44, 580750), (46, 555500), (50, 511060), (55, 464600), (88, 290375), (92, 277750), (100, 255530), (101, 253000), (110, 232300), (115, 222200), (125, 204424), (184, 138875), (200, 127765), (202, 126500), (220, 116150), (230, 111100), (250, 102212), (253, 101000), (275, 92920), (404, 63250), (440, 58075), (460, 55550), (500, 51106), (505, 50600), (506, 50500), (550, 46460), (575, 44440), (808, 31625), (920, 27775), (1000, 25553), (1010, 25300), (1012, 25250), (1100, 23230), (1111, 23000), (1150, 22220), (1265, 20200), (1375, 18584), (2020, 12650), (2024, 12625), (2200, 11615), (2222, 11500), (2300, 11110), (2323, 11000), (2525, 10120), (2530, 10100), (2750, 9292), (2875, 8888), (4040, 6325), (4444, 5750), (4600, 5555), (4646, 5500), (5050, 5060)]