28879360

素因数分解:

$2^9\times 5^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 80

約数和(自身を含む): 71814600

約数和(自身を除く): 42935240

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, 389, 464, 512, 580, 640, 778, 928, 1160, 1280, 1556, 1856, 1945, 2320, 2560, 3112, 3712, 3890, 4640, 6224, 7424, 7780, 9280, 11281, 12448, 14848, 15560, 18560, 22562, 24896, 31120, 37120, 45124, 49792, 56405, 62240, 74240, 90248, 99584, 112810, 124480, 180496, 199168, 225620, 248960, 360992, 451240, 497920, 721984, 902480, 995840, 1443968, 1804960, 2887936, 3609920, 5775872, 7219840, 14439680, 28879360]

約数ペア:

[(1, 28879360), (2, 14439680), (4, 7219840), (5, 5775872), (8, 3609920), (10, 2887936), (16, 1804960), (20, 1443968), (29, 995840), (32, 902480), (40, 721984), (58, 497920), (64, 451240), (80, 360992), (116, 248960), (128, 225620), (145, 199168), (160, 180496), (232, 124480), (256, 112810), (290, 99584), (320, 90248), (389, 74240), (464, 62240), (512, 56405), (580, 49792), (640, 45124), (778, 37120), (928, 31120), (1160, 24896), (1280, 22562), (1556, 18560), (1856, 15560), (1945, 14848), (2320, 12448), (2560, 11281), (3112, 9280), (3712, 7780), (3890, 7424), (4640, 6224)]