25761280

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:399

約数の個数: 80

約数和(自身を含む): 64080720

約数和(自身を除く): 38319440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 347, 464, 512, 580, 640, 694, 928, 1160, 1280, 1388, 1735, 1856, 2320, 2560, 2776, 3470, 3712, 4640, 5552, 6940, 7424, 9280, 10063, 11104, 13880, 14848, 18560, 20126, 22208, 27760, 37120, 40252, 44416, 50315, 55520, 74240, 80504, 88832, 100630, 111040, 161008, 177664, 201260, 222080, 322016, 402520, 444160, 644032, 805040, 888320, 1288064, 1610080, 2576128, 3220160, 5152256, 6440320, 12880640, 25761280]

約数ペア:

[(1, 25761280), (2, 12880640), (4, 6440320), (5, 5152256), (8, 3220160), (10, 2576128), (16, 1610080), (20, 1288064), (29, 888320), (32, 805040), (40, 644032), (58, 444160), (64, 402520), (80, 322016), (116, 222080), (128, 201260), (145, 177664), (160, 161008), (232, 111040), (256, 100630), (290, 88832), (320, 80504), (347, 74240), (464, 55520), (512, 50315), (580, 44416), (640, 40252), (694, 37120), (928, 27760), (1160, 22208), (1280, 20126), (1388, 18560), (1735, 14848), (1856, 13880), (2320, 11104), (2560, 10063), (2776, 9280), (3470, 7424), (3712, 6940), (4640, 5552)]