79999680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:686

約数の個数: 112

約数和(自身を含む): 256032000

約数和(自身を除く): 176032320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 167, 192, 240, 320, 334, 480, 499, 501, 668, 835, 960, 998, 1002, 1336, 1497, 1670, 1996, 2004, 2495, 2505, 2672, 2994, 3340, 3992, 4008, 4990, 5010, 5344, 5988, 6680, 7485, 7984, 8016, 9980, 10020, 10688, 11976, 13360, 14970, 15968, 16032, 19960, 20040, 23952, 26720, 29940, 31936, 32064, 39920, 40080, 47904, 53440, 59880, 79840, 80160, 83333, 95808, 119760, 159680, 160320, 166666, 239520, 249999, 333332, 416665, 479040, 499998, 666664, 833330, 999996, 1249995, 1333328, 1666660, 1999992, 2499990, 2666656, 3333320, 3999984, 4999980, 5333312, 6666640, 7999968, 9999960, 13333280, 15999936, 19999920, 26666560, 39999840, 79999680]

約数ペア:

[(1, 79999680), (2, 39999840), (3, 26666560), (4, 19999920), (5, 15999936), (6, 13333280), (8, 9999960), (10, 7999968), (12, 6666640), (15, 5333312), (16, 4999980), (20, 3999984), (24, 3333320), (30, 2666656), (32, 2499990), (40, 1999992), (48, 1666660), (60, 1333328), (64, 1249995), (80, 999996), (96, 833330), (120, 666664), (160, 499998), (167, 479040), (192, 416665), (240, 333332), (320, 249999), (334, 239520), (480, 166666), (499, 160320), (501, 159680), (668, 119760), (835, 95808), (960, 83333), (998, 80160), (1002, 79840), (1336, 59880), (1497, 53440), (1670, 47904), (1996, 40080), (2004, 39920), (2495, 32064), (2505, 31936), (2672, 29940), (2994, 26720), (3340, 23952), (3992, 20040), (4008, 19960), (4990, 16032), (5010, 15968), (5344, 14970), (5988, 13360), (6680, 11976), (7485, 10688), (7984, 10020), (8016, 9980)]