405001440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{281251}}^1$

素因数の和:281272

約数の個数: 72

約数和(自身を含む): 1382072328

約数和(自身を除く): 977070888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 281251, 562502, 843753, 1125004, 1406255, 1687506, 2250008, 2531259, 2812510, 3375012, 4218765, 4500016, 5062518, 5625020, 6750024, 8437530, 9000032, 10125036, 11250040, 12656295, 13500048, 16875060, 20250072, 22500080, 25312590, 27000096, 33750120, 40500144, 45000160, 50625180, 67500240, 81000288, 101250360, 135000480, 202500720, 405001440]

約数ペア:

[(1, 405001440), (2, 202500720), (3, 135000480), (4, 101250360), (5, 81000288), (6, 67500240), (8, 50625180), (9, 45000160), (10, 40500144), (12, 33750120), (15, 27000096), (16, 25312590), (18, 22500080), (20, 20250072), (24, 16875060), (30, 13500048), (32, 12656295), (36, 11250040), (40, 10125036), (45, 9000032), (48, 8437530), (60, 6750024), (72, 5625020), (80, 5062518), (90, 4500016), (96, 4218765), (120, 3375012), (144, 2812510), (160, 2531259), (180, 2250008), (240, 1687506), (288, 1406255), (360, 1125004), (480, 843753), (720, 562502), (1440, 281251)]