81307440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112927}}^1$

素因数の和:112946

約数の個数: 60

約数和(自身を含む): 273059904

約数和(自身を除く): 191752464

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, 112927, 225854, 338781, 451708, 564635, 677562, 903416, 1016343, 1129270, 1355124, 1693905, 1806832, 2032686, 2258540, 2710248, 3387810, 4065372, 4517080, 5081715, 5420496, 6775620, 8130744, 9034160, 10163430, 13551240, 16261488, 20326860, 27102480, 40653720, 81307440]

約数ペア:

[(1, 81307440), (2, 40653720), (3, 27102480), (4, 20326860), (5, 16261488), (6, 13551240), (8, 10163430), (9, 9034160), (10, 8130744), (12, 6775620), (15, 5420496), (16, 5081715), (18, 4517080), (20, 4065372), (24, 3387810), (30, 2710248), (36, 2258540), (40, 2032686), (45, 1806832), (48, 1693905), (60, 1355124), (72, 1129270), (80, 1016343), (90, 903416), (120, 677562), (144, 564635), (180, 451708), (240, 338781), (360, 225854), (720, 112927)]