7821440

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 20755980

約数和(自身を除く): 12934540

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 101, 110, 121, 128, 160, 176, 202, 220, 242, 320, 352, 404, 440, 484, 505, 605, 640, 704, 808, 880, 968, 1010, 1111, 1210, 1408, 1616, 1760, 1936, 2020, 2222, 2420, 3232, 3520, 3872, 4040, 4444, 4840, 5555, 6464, 7040, 7744, 8080, 8888, 9680, 11110, 12221, 12928, 15488, 16160, 17776, 19360, 22220, 24442, 32320, 35552, 38720, 44440, 48884, 61105, 64640, 71104, 77440, 88880, 97768, 122210, 142208, 177760, 195536, 244420, 355520, 391072, 488840, 711040, 782144, 977680, 1564288, 1955360, 3910720, 7821440]

約数ペア:

[(1, 7821440), (2, 3910720), (4, 1955360), (5, 1564288), (8, 977680), (10, 782144), (11, 711040), (16, 488840), (20, 391072), (22, 355520), (32, 244420), (40, 195536), (44, 177760), (55, 142208), (64, 122210), (80, 97768), (88, 88880), (101, 77440), (110, 71104), (121, 64640), (128, 61105), (160, 48884), (176, 44440), (202, 38720), (220, 35552), (242, 32320), (320, 24442), (352, 22220), (404, 19360), (440, 17776), (484, 16160), (505, 15488), (605, 12928), (640, 12221), (704, 11110), (808, 9680), (880, 8888), (968, 8080), (1010, 7744), (1111, 7040), (1210, 6464), (1408, 5555), (1616, 4840), (1760, 4444), (1936, 4040), (2020, 3872), (2222, 3520), (2420, 3232)]