399749040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{185069}}^1$

素因数の和:185091

約数の個数: 80

約数和(自身を含む): 1376920800

約数和(自身を除く): 977171760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 185069, 370138, 555207, 740276, 925345, 1110414, 1480552, 1665621, 1850690, 2220828, 2776035, 2961104, 3331242, 3701380, 4441656, 4996863, 5552070, 6662484, 7402760, 8328105, 8883312, 9993726, 11104140, 13324968, 14805520, 16656210, 19987452, 22208280, 24984315, 26649936, 33312420, 39974904, 44416560, 49968630, 66624840, 79949808, 99937260, 133249680, 199874520, 399749040]

約数ペア:

[(1, 399749040), (2, 199874520), (3, 133249680), (4, 99937260), (5, 79949808), (6, 66624840), (8, 49968630), (9, 44416560), (10, 39974904), (12, 33312420), (15, 26649936), (16, 24984315), (18, 22208280), (20, 19987452), (24, 16656210), (27, 14805520), (30, 13324968), (36, 11104140), (40, 9993726), (45, 8883312), (48, 8328105), (54, 7402760), (60, 6662484), (72, 5552070), (80, 4996863), (90, 4441656), (108, 3701380), (120, 3331242), (135, 2961104), (144, 2776035), (180, 2220828), (216, 1850690), (240, 1665621), (270, 1480552), (360, 1110414), (432, 925345), (540, 740276), (720, 555207), (1080, 370138), (2160, 185069)]