256759040

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6917}}^1$

素因数の和:6967

約数の個数: 72

約数和(自身を含む): 636317640

約数和(自身を除く): 379558600

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, 464, 580, 640, 928, 1160, 1280, 1856, 2320, 3712, 4640, 6917, 7424, 9280, 13834, 18560, 27668, 34585, 37120, 55336, 69170, 110672, 138340, 200593, 221344, 276680, 401186, 442688, 553360, 802372, 885376, 1002965, 1106720, 1604744, 1770752, 2005930, 2213440, 3209488, 4011860, 4426880, 6418976, 8023720, 8853760, 12837952, 16047440, 25675904, 32094880, 51351808, 64189760, 128379520, 256759040]

約数ペア:

[(1, 256759040), (2, 128379520), (4, 64189760), (5, 51351808), (8, 32094880), (10, 25675904), (16, 16047440), (20, 12837952), (29, 8853760), (32, 8023720), (40, 6418976), (58, 4426880), (64, 4011860), (80, 3209488), (116, 2213440), (128, 2005930), (145, 1770752), (160, 1604744), (232, 1106720), (256, 1002965), (290, 885376), (320, 802372), (464, 553360), (580, 442688), (640, 401186), (928, 276680), (1160, 221344), (1280, 200593), (1856, 138340), (2320, 110672), (3712, 69170), (4640, 55336), (6917, 37120), (7424, 34585), (9280, 27668), (13834, 18560)]