31285760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1$

素因数の和:146

約数の個数: 120

約数和(自身を含む): 83268108

約数和(自身を除く): 51982348

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, 256, 320, 352, 404, 440, 484, 505, 512, 605, 640, 704, 808, 880, 968, 1010, 1111, 1210, 1280, 1408, 1616, 1760, 1936, 2020, 2222, 2420, 2560, 2816, 3232, 3520, 3872, 4040, 4444, 4840, 5555, 5632, 6464, 7040, 7744, 8080, 8888, 9680, 11110, 12221, 12928, 14080, 15488, 16160, 17776, 19360, 22220, 24442, 25856, 28160, 30976, 32320, 35552, 38720, 44440, 48884, 51712, 61105, 61952, 64640, 71104, 77440, 88880, 97768, 122210, 129280, 142208, 154880, 177760, 195536, 244420, 258560, 284416, 309760, 355520, 391072, 488840, 568832, 711040, 782144, 977680, 1422080, 1564288, 1955360, 2844160, 3128576, 3910720, 6257152, 7821440, 15642880, 31285760]

約数ペア:

[(1, 31285760), (2, 15642880), (4, 7821440), (5, 6257152), (8, 3910720), (10, 3128576), (11, 2844160), (16, 1955360), (20, 1564288), (22, 1422080), (32, 977680), (40, 782144), (44, 711040), (55, 568832), (64, 488840), (80, 391072), (88, 355520), (101, 309760), (110, 284416), (121, 258560), (128, 244420), (160, 195536), (176, 177760), (202, 154880), (220, 142208), (242, 129280), (256, 122210), (320, 97768), (352, 88880), (404, 77440), (440, 71104), (484, 64640), (505, 61952), (512, 61105), (605, 51712), (640, 48884), (704, 44440), (808, 38720), (880, 35552), (968, 32320), (1010, 30976), (1111, 28160), (1210, 25856), (1280, 24442), (1408, 22220), (1616, 19360), (1760, 17776), (1936, 16160), (2020, 15488), (2222, 14080), (2420, 12928), (2560, 12221), (2816, 11110), (3232, 9680), (3520, 8888), (3872, 8080), (4040, 7744), (4444, 7040), (4840, 6464), (5555, 5632)]