15820640

素因数分解:

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

素因数の和:216

約数の個数: 96

約数和(自身を含む): 41640480

約数和(自身を除く): 25819840

約数列:

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

約数ペア:

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