31641280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 112

約数和(自身を含む): 83941920

約数和(自身を除く): 52300640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 89, 101, 110, 160, 176, 178, 202, 220, 320, 352, 356, 404, 440, 445, 505, 704, 712, 808, 880, 890, 979, 1010, 1111, 1424, 1616, 1760, 1780, 1958, 2020, 2222, 2848, 3232, 3520, 3560, 3916, 4040, 4444, 4895, 5555, 5696, 6464, 7120, 7832, 8080, 8888, 8989, 9790, 11110, 14240, 15664, 16160, 17776, 17978, 19580, 22220, 28480, 31328, 32320, 35552, 35956, 39160, 44440, 44945, 62656, 71104, 71912, 78320, 88880, 89890, 98879, 143824, 156640, 177760, 179780, 197758, 287648, 313280, 355520, 359560, 395516, 494395, 575296, 719120, 791032, 988790, 1438240, 1582064, 1977580, 2876480, 3164128, 3955160, 6328256, 7910320, 15820640, 31641280]

約数ペア:

[(1, 31641280), (2, 15820640), (4, 7910320), (5, 6328256), (8, 3955160), (10, 3164128), (11, 2876480), (16, 1977580), (20, 1582064), (22, 1438240), (32, 988790), (40, 791032), (44, 719120), (55, 575296), (64, 494395), (80, 395516), (88, 359560), (89, 355520), (101, 313280), (110, 287648), (160, 197758), (176, 179780), (178, 177760), (202, 156640), (220, 143824), (320, 98879), (352, 89890), (356, 88880), (404, 78320), (440, 71912), (445, 71104), (505, 62656), (704, 44945), (712, 44440), (808, 39160), (880, 35956), (890, 35552), (979, 32320), (1010, 31328), (1111, 28480), (1424, 22220), (1616, 19580), (1760, 17978), (1780, 17776), (1958, 16160), (2020, 15664), (2222, 14240), (2848, 11110), (3232, 9790), (3520, 8989), (3560, 8888), (3916, 8080), (4040, 7832), (4444, 7120), (4895, 6464), (5555, 5696)]