20553500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 50791104

約数和(自身を除く): 30237604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 101, 110, 125, 148, 185, 202, 220, 250, 275, 370, 404, 407, 500, 505, 550, 740, 814, 925, 1010, 1100, 1111, 1375, 1628, 1850, 2020, 2035, 2222, 2525, 2750, 3700, 3737, 4070, 4444, 4625, 5050, 5500, 5555, 7474, 8140, 9250, 10100, 10175, 11110, 12625, 14948, 18500, 18685, 20350, 22220, 25250, 27775, 37370, 40700, 41107, 50500, 50875, 55550, 74740, 82214, 93425, 101750, 111100, 138875, 164428, 186850, 203500, 205535, 277750, 373700, 411070, 467125, 555500, 822140, 934250, 1027675, 1868500, 2055350, 4110700, 5138375, 10276750, 20553500]

約数ペア:

[(1, 20553500), (2, 10276750), (4, 5138375), (5, 4110700), (10, 2055350), (11, 1868500), (20, 1027675), (22, 934250), (25, 822140), (37, 555500), (44, 467125), (50, 411070), (55, 373700), (74, 277750), (100, 205535), (101, 203500), (110, 186850), (125, 164428), (148, 138875), (185, 111100), (202, 101750), (220, 93425), (250, 82214), (275, 74740), (370, 55550), (404, 50875), (407, 50500), (500, 41107), (505, 40700), (550, 37370), (740, 27775), (814, 25250), (925, 22220), (1010, 20350), (1100, 18685), (1111, 18500), (1375, 14948), (1628, 12625), (1850, 11110), (2020, 10175), (2035, 10100), (2222, 9250), (2525, 8140), (2750, 7474), (3700, 5555), (3737, 5500), (4070, 5050), (4444, 4625)]