78720120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{72889}}^1$

素因数の和:72909

約数の個数: 64

約数和(自身を含む): 262404000

約数和(自身を除く): 183683880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 72889, 145778, 218667, 291556, 364445, 437334, 583112, 656001, 728890, 874668, 1093335, 1312002, 1457780, 1749336, 1968003, 2186670, 2624004, 2915560, 3280005, 3936006, 4373340, 5248008, 6560010, 7872012, 8746680, 9840015, 13120020, 15744024, 19680030, 26240040, 39360060, 78720120]

約数ペア:

[(1, 78720120), (2, 39360060), (3, 26240040), (4, 19680030), (5, 15744024), (6, 13120020), (8, 9840015), (9, 8746680), (10, 7872012), (12, 6560010), (15, 5248008), (18, 4373340), (20, 3936006), (24, 3280005), (27, 2915560), (30, 2624004), (36, 2186670), (40, 1968003), (45, 1749336), (54, 1457780), (60, 1312002), (72, 1093335), (90, 874668), (108, 728890), (120, 656001), (135, 583112), (180, 437334), (216, 364445), (270, 291556), (360, 218667), (540, 145778), (1080, 72889)]