180720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{251}}^1$

素因数の和:270

約数の個数: 60

約数和(自身を含む): 609336

約数和(自身を除く): 428616

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, 251, 360, 502, 720, 753, 1004, 1255, 1506, 2008, 2259, 2510, 3012, 3765, 4016, 4518, 5020, 6024, 7530, 9036, 10040, 11295, 12048, 15060, 18072, 20080, 22590, 30120, 36144, 45180, 60240, 90360, 180720]

約数ペア:

[(1, 180720), (2, 90360), (3, 60240), (4, 45180), (5, 36144), (6, 30120), (8, 22590), (9, 20080), (10, 18072), (12, 15060), (15, 12048), (16, 11295), (18, 10040), (20, 9036), (24, 7530), (30, 6024), (36, 5020), (40, 4518), (45, 4016), (48, 3765), (60, 3012), (72, 2510), (80, 2259), (90, 2008), (120, 1506), (144, 1255), (180, 1004), (240, 753), (251, 720), (360, 502)]