205505280

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{17839}}^1$

素因数の和:17866

約数の個数: 108

約数和(自身を含む): 711066720

約数和(自身を除く): 505561440

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 17839, 35678, 53517, 71356, 89195, 107034, 142712, 160551, 178390, 214068, 267585, 285424, 321102, 356780, 428136, 535170, 570848, 642204, 713560, 802755, 856272, 1070340, 1141696, 1284408, 1427120, 1605510, 1712544, 2140680, 2283392, 2568816, 2854240, 3211020, 3425088, 4281360, 4566784, 5137632, 5708480, 6422040, 6850176, 8562720, 10275264, 11416960, 12844080, 13700352, 17125440, 20550528, 22833920, 25688160, 34250880, 41101056, 51376320, 68501760, 102752640, 205505280]

約数ペア:

[(1, 205505280), (2, 102752640), (3, 68501760), (4, 51376320), (5, 41101056), (6, 34250880), (8, 25688160), (9, 22833920), (10, 20550528), (12, 17125440), (15, 13700352), (16, 12844080), (18, 11416960), (20, 10275264), (24, 8562720), (30, 6850176), (32, 6422040), (36, 5708480), (40, 5137632), (45, 4566784), (48, 4281360), (60, 3425088), (64, 3211020), (72, 2854240), (80, 2568816), (90, 2283392), (96, 2140680), (120, 1712544), (128, 1605510), (144, 1427120), (160, 1284408), (180, 1141696), (192, 1070340), (240, 856272), (256, 802755), (288, 713560), (320, 642204), (360, 570848), (384, 535170), (480, 428136), (576, 356780), (640, 321102), (720, 285424), (768, 267585), (960, 214068), (1152, 178390), (1280, 160551), (1440, 142712), (1920, 107034), (2304, 89195), (2880, 71356), (3840, 53517), (5760, 35678), (11520, 17839)]