12880640

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 32009040

約数和(自身を除く): 19128400

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, 580, 640, 694, 928, 1160, 1280, 1388, 1735, 1856, 2320, 2776, 3470, 3712, 4640, 5552, 6940, 7424, 9280, 10063, 11104, 13880, 18560, 20126, 22208, 27760, 37120, 40252, 44416, 50315, 55520, 80504, 88832, 100630, 111040, 161008, 201260, 222080, 322016, 402520, 444160, 644032, 805040, 1288064, 1610080, 2576128, 3220160, 6440320, 12880640]

約数ペア:

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