82721920

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4457}}^1$

素因数の和:4505

約数の個数: 64

約数和(自身を含む): 204622200

約数和(自身を除く): 121900280

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, 4457, 4640, 8914, 9280, 17828, 18560, 22285, 35656, 44570, 71312, 89140, 129253, 142624, 178280, 258506, 285248, 356560, 517012, 570496, 646265, 713120, 1034024, 1292530, 1426240, 2068048, 2585060, 2852480, 4136096, 5170120, 8272192, 10340240, 16544384, 20680480, 41360960, 82721920]

約数ペア:

[(1, 82721920), (2, 41360960), (4, 20680480), (5, 16544384), (8, 10340240), (10, 8272192), (16, 5170120), (20, 4136096), (29, 2852480), (32, 2585060), (40, 2068048), (58, 1426240), (64, 1292530), (80, 1034024), (116, 713120), (128, 646265), (145, 570496), (160, 517012), (232, 356560), (290, 285248), (320, 258506), (464, 178280), (580, 142624), (640, 129253), (928, 89140), (1160, 71312), (1856, 44570), (2320, 35656), (3712, 22285), (4457, 18560), (4640, 17828), (8914, 9280)]