255504640

素因数分解:

$2^8\times 5^1\times {\mathrm{433}}^1\times {\mathrm{461}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 614757528

約数和(自身を除く): 359252888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 433, 461, 640, 866, 922, 1280, 1732, 1844, 2165, 2305, 3464, 3688, 4330, 4610, 6928, 7376, 8660, 9220, 13856, 14752, 17320, 18440, 27712, 29504, 34640, 36880, 55424, 59008, 69280, 73760, 110848, 118016, 138560, 147520, 199613, 277120, 295040, 399226, 554240, 590080, 798452, 998065, 1596904, 1996130, 3193808, 3992260, 6387616, 7984520, 12775232, 15969040, 25550464, 31938080, 51100928, 63876160, 127752320, 255504640]

約数ペア:

[(1, 255504640), (2, 127752320), (4, 63876160), (5, 51100928), (8, 31938080), (10, 25550464), (16, 15969040), (20, 12775232), (32, 7984520), (40, 6387616), (64, 3992260), (80, 3193808), (128, 1996130), (160, 1596904), (256, 998065), (320, 798452), (433, 590080), (461, 554240), (640, 399226), (866, 295040), (922, 277120), (1280, 199613), (1732, 147520), (1844, 138560), (2165, 118016), (2305, 110848), (3464, 73760), (3688, 69280), (4330, 59008), (4610, 55424), (6928, 36880), (7376, 34640), (8660, 29504), (9220, 27712), (13856, 18440), (14752, 17320)]