16551720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 96

約数和(自身を含む): 56160000

約数和(自身を除く): 39608280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 1999, 2070, 2760, 3998, 4140, 5997, 7996, 8280, 9995, 11994, 15992, 17991, 19990, 23988, 29985, 35982, 39980, 45977, 47976, 59970, 71964, 79960, 89955, 91954, 119940, 137931, 143928, 179910, 183908, 229885, 239880, 275862, 359820, 367816, 413793, 459770, 551724, 689655, 719640, 827586, 919540, 1103448, 1379310, 1655172, 1839080, 2068965, 2758620, 3310344, 4137930, 5517240, 8275860, 16551720]

約数ペア:

[(1, 16551720), (2, 8275860), (3, 5517240), (4, 4137930), (5, 3310344), (6, 2758620), (8, 2068965), (9, 1839080), (10, 1655172), (12, 1379310), (15, 1103448), (18, 919540), (20, 827586), (23, 719640), (24, 689655), (30, 551724), (36, 459770), (40, 413793), (45, 367816), (46, 359820), (60, 275862), (69, 239880), (72, 229885), (90, 183908), (92, 179910), (115, 143928), (120, 137931), (138, 119940), (180, 91954), (184, 89955), (207, 79960), (230, 71964), (276, 59970), (345, 47976), (360, 45977), (414, 39980), (460, 35982), (552, 29985), (690, 23988), (828, 19990), (920, 17991), (1035, 15992), (1380, 11994), (1656, 9995), (1999, 8280), (2070, 7996), (2760, 5997), (3998, 4140)]