181440720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{252001}}^1$

素因数の和:252020

約数の個数: 60

約数和(自身を含む): 609340836

約数和(自身を除く): 427900116

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 252001, 504002, 756003, 1008004, 1260005, 1512006, 2016008, 2268009, 2520010, 3024012, 3780015, 4032016, 4536018, 5040020, 6048024, 7560030, 9072036, 10080040, 11340045, 12096048, 15120060, 18144072, 20160080, 22680090, 30240120, 36288144, 45360180, 60480240, 90720360, 181440720]

約数ペア:

[(1, 181440720), (2, 90720360), (3, 60480240), (4, 45360180), (5, 36288144), (6, 30240120), (8, 22680090), (9, 20160080), (10, 18144072), (12, 15120060), (15, 12096048), (16, 11340045), (18, 10080040), (20, 9072036), (24, 7560030), (30, 6048024), (36, 5040020), (40, 4536018), (45, 4032016), (48, 3780015), (60, 3024012), (72, 2520010), (80, 2268009), (90, 2016008), (120, 1512006), (144, 1260005), (180, 1008004), (240, 756003), (360, 504002), (720, 252001)]