179999280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:688

約数の個数: 160

約数和(自身を含む): 624960000

約数和(自身を除く): 444960720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 167, 180, 216, 240, 270, 334, 360, 432, 499, 501, 540, 668, 720, 835, 998, 1002, 1080, 1336, 1497, 1503, 1670, 1996, 2004, 2160, 2495, 2505, 2672, 2994, 3006, 3340, 3992, 4008, 4491, 4509, 4990, 5010, 5988, 6012, 6680, 7485, 7515, 7984, 8016, 8982, 9018, 9980, 10020, 11976, 12024, 13360, 13473, 14970, 15030, 17964, 18036, 19960, 20040, 22455, 22545, 23952, 24048, 26946, 29940, 30060, 35928, 36072, 39920, 40080, 44910, 45090, 53892, 59880, 60120, 67365, 71856, 72144, 83333, 89820, 90180, 107784, 119760, 120240, 134730, 166666, 179640, 180360, 215568, 249999, 269460, 333332, 359280, 360720, 416665, 499998, 538920, 666664, 749997, 833330, 999996, 1077840, 1249995, 1333328, 1499994, 1666660, 1999992, 2249991, 2499990, 2999988, 3333320, 3749985, 3999984, 4499982, 4999980, 5999976, 6666640, 7499970, 8999964, 9999960, 11249955, 11999952, 14999940, 17999928, 19999920, 22499910, 29999880, 35999856, 44999820, 59999760, 89999640, 179999280]

約数ペア:

[(1, 179999280), (2, 89999640), (3, 59999760), (4, 44999820), (5, 35999856), (6, 29999880), (8, 22499910), (9, 19999920), (10, 17999928), (12, 14999940), (15, 11999952), (16, 11249955), (18, 9999960), (20, 8999964), (24, 7499970), (27, 6666640), (30, 5999976), (36, 4999980), (40, 4499982), (45, 3999984), (48, 3749985), (54, 3333320), (60, 2999988), (72, 2499990), (80, 2249991), (90, 1999992), (108, 1666660), (120, 1499994), (135, 1333328), (144, 1249995), (167, 1077840), (180, 999996), (216, 833330), (240, 749997), (270, 666664), (334, 538920), (360, 499998), (432, 416665), (499, 360720), (501, 359280), (540, 333332), (668, 269460), (720, 249999), (835, 215568), (998, 180360), (1002, 179640), (1080, 166666), (1336, 134730), (1497, 120240), (1503, 119760), (1670, 107784), (1996, 90180), (2004, 89820), (2160, 83333), (2495, 72144), (2505, 71856), (2672, 67365), (2994, 60120), (3006, 59880), (3340, 53892), (3992, 45090), (4008, 44910), (4491, 40080), (4509, 39920), (4990, 36072), (5010, 35928), (5988, 30060), (6012, 29940), (6680, 26946), (7485, 24048), (7515, 23952), (7984, 22545), (8016, 22455), (8982, 20040), (9018, 19960), (9980, 18036), (10020, 17964), (11976, 15030), (12024, 14970), (13360, 13473)]