81775360

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2203}}^1$

素因数の和:2253

約数の個数: 72

約数和(自身を含む): 202723920

約数和(自身を除く): 120948560

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, 2203, 2320, 3712, 4406, 4640, 7424, 8812, 9280, 11015, 17624, 18560, 22030, 35248, 37120, 44060, 63887, 70496, 88120, 127774, 140992, 176240, 255548, 281984, 319435, 352480, 511096, 563968, 638870, 704960, 1022192, 1277740, 1409920, 2044384, 2555480, 2819840, 4088768, 5110960, 8177536, 10221920, 16355072, 20443840, 40887680, 81775360]

約数ペア:

[(1, 81775360), (2, 40887680), (4, 20443840), (5, 16355072), (8, 10221920), (10, 8177536), (16, 5110960), (20, 4088768), (29, 2819840), (32, 2555480), (40, 2044384), (58, 1409920), (64, 1277740), (80, 1022192), (116, 704960), (128, 638870), (145, 563968), (160, 511096), (232, 352480), (256, 319435), (290, 281984), (320, 255548), (464, 176240), (580, 140992), (640, 127774), (928, 88120), (1160, 70496), (1280, 63887), (1856, 44060), (2203, 37120), (2320, 35248), (3712, 22030), (4406, 18560), (4640, 17624), (7424, 11015), (8812, 9280)]