1245840128

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{374351}}^1$

素因数の和:374380

約数の個数: 36

約数和(自身を含む): 2678114208

約数和(自身を除く): 1432274080

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 374351, 748702, 1497404, 2994808, 4866563, 5989616, 9733126, 11979232, 19466252, 23958464, 38932504, 47916928, 77865008, 95833856, 155730016, 311460032, 622920064, 1245840128]

約数ペア:

[(1, 1245840128), (2, 622920064), (4, 311460032), (8, 155730016), (13, 95833856), (16, 77865008), (26, 47916928), (32, 38932504), (52, 23958464), (64, 19466252), (104, 11979232), (128, 9733126), (208, 5989616), (256, 4866563), (416, 2994808), (832, 1497404), (1664, 748702), (3328, 374351)]