80717440

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4349}}^1$

素因数の和:4397

約数の個数: 64

約数和(自身を含む): 199665000

約数和(自身を除く): 118947560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1856, 2320, 3712, 4349, 4640, 8698, 9280, 17396, 18560, 21745, 34792, 43490, 69584, 86980, 126121, 139168, 173960, 252242, 278336, 347920, 504484, 556672, 630605, 695840, 1008968, 1261210, 1391680, 2017936, 2522420, 2783360, 4035872, 5044840, 8071744, 10089680, 16143488, 20179360, 40358720, 80717440]

約数ペア:

[(1, 80717440), (2, 40358720), (4, 20179360), (5, 16143488), (8, 10089680), (10, 8071744), (16, 5044840), (20, 4035872), (29, 2783360), (32, 2522420), (40, 2017936), (58, 1391680), (64, 1261210), (80, 1008968), (116, 695840), (128, 630605), (145, 556672), (160, 504484), (232, 347920), (290, 278336), (320, 252242), (464, 173960), (580, 139168), (640, 126121), (928, 86980), (1160, 69584), (1856, 43490), (2320, 34792), (3712, 21745), (4349, 18560), (4640, 17396), (8698, 9280)]