13420880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 34604928

約数和(自身を除く): 21184048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 101, 110, 151, 176, 202, 220, 302, 404, 440, 505, 604, 755, 808, 880, 1010, 1111, 1208, 1510, 1616, 1661, 2020, 2222, 2416, 3020, 3322, 4040, 4444, 5555, 6040, 6644, 8080, 8305, 8888, 11110, 12080, 13288, 15251, 16610, 17776, 22220, 26576, 30502, 33220, 44440, 61004, 66440, 76255, 88880, 122008, 132880, 152510, 167761, 244016, 305020, 335522, 610040, 671044, 838805, 1220080, 1342088, 1677610, 2684176, 3355220, 6710440, 13420880]

約数ペア:

[(1, 13420880), (2, 6710440), (4, 3355220), (5, 2684176), (8, 1677610), (10, 1342088), (11, 1220080), (16, 838805), (20, 671044), (22, 610040), (40, 335522), (44, 305020), (55, 244016), (80, 167761), (88, 152510), (101, 132880), (110, 122008), (151, 88880), (176, 76255), (202, 66440), (220, 61004), (302, 44440), (404, 33220), (440, 30502), (505, 26576), (604, 22220), (755, 17776), (808, 16610), (880, 15251), (1010, 13288), (1111, 12080), (1208, 11110), (1510, 8888), (1616, 8305), (1661, 8080), (2020, 6644), (2222, 6040), (2416, 5555), (3020, 4444), (3322, 4040)]