278718480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{387109}}^1$

素因数の和:387128

約数の個数: 60

約数和(自身を含む): 936031980

約数和(自身を除く): 657313500

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, 387109, 774218, 1161327, 1548436, 1935545, 2322654, 3096872, 3483981, 3871090, 4645308, 5806635, 6193744, 6967962, 7742180, 9290616, 11613270, 13935924, 15484360, 17419905, 18581232, 23226540, 27871848, 30968720, 34839810, 46453080, 55743696, 69679620, 92906160, 139359240, 278718480]

約数ペア:

[(1, 278718480), (2, 139359240), (3, 92906160), (4, 69679620), (5, 55743696), (6, 46453080), (8, 34839810), (9, 30968720), (10, 27871848), (12, 23226540), (15, 18581232), (16, 17419905), (18, 15484360), (20, 13935924), (24, 11613270), (30, 9290616), (36, 7742180), (40, 6967962), (45, 6193744), (48, 5806635), (60, 4645308), (72, 3871090), (80, 3483981), (90, 3096872), (120, 2322654), (144, 1935545), (180, 1548436), (240, 1161327), (360, 774218), (720, 387109)]