12221000

素因数分解:

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

素因数の和:144

約数の個数: 96

約数和(自身を含む): 31744440

約数和(自身を除く): 19523440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 101, 110, 121, 125, 200, 202, 220, 242, 250, 275, 404, 440, 484, 500, 505, 550, 605, 808, 968, 1000, 1010, 1100, 1111, 1210, 1375, 2020, 2200, 2222, 2420, 2525, 2750, 3025, 4040, 4444, 4840, 5050, 5500, 5555, 6050, 8888, 10100, 11000, 11110, 12100, 12221, 12625, 15125, 20200, 22220, 24200, 24442, 25250, 27775, 30250, 44440, 48884, 50500, 55550, 60500, 61105, 97768, 101000, 111100, 121000, 122210, 138875, 222200, 244420, 277750, 305525, 488840, 555500, 611050, 1111000, 1222100, 1527625, 2444200, 3055250, 6110500, 12221000]

約数ペア:

[(1, 12221000), (2, 6110500), (4, 3055250), (5, 2444200), (8, 1527625), (10, 1222100), (11, 1111000), (20, 611050), (22, 555500), (25, 488840), (40, 305525), (44, 277750), (50, 244420), (55, 222200), (88, 138875), (100, 122210), (101, 121000), (110, 111100), (121, 101000), (125, 97768), (200, 61105), (202, 60500), (220, 55550), (242, 50500), (250, 48884), (275, 44440), (404, 30250), (440, 27775), (484, 25250), (500, 24442), (505, 24200), (550, 22220), (605, 20200), (808, 15125), (968, 12625), (1000, 12221), (1010, 12100), (1100, 11110), (1111, 11000), (1210, 10100), (1375, 8888), (2020, 6050), (2200, 5555), (2222, 5500), (2420, 5050), (2525, 4840), (2750, 4444), (3025, 4040)]