81683840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18233}}^1$

素因数の和:18259

約数の個数: 64

約数和(自身を含む): 223184160

約数和(自身を除く): 141500320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18233, 36466, 72932, 91165, 127631, 145864, 182330, 255262, 291728, 364660, 510524, 583456, 638155, 729320, 1021048, 1166912, 1276310, 1458640, 2042096, 2333824, 2552620, 2917280, 4084192, 5105240, 5834560, 8168384, 10210480, 11669120, 16336768, 20420960, 40841920, 81683840]

約数ペア:

[(1, 81683840), (2, 40841920), (4, 20420960), (5, 16336768), (7, 11669120), (8, 10210480), (10, 8168384), (14, 5834560), (16, 5105240), (20, 4084192), (28, 2917280), (32, 2552620), (35, 2333824), (40, 2042096), (56, 1458640), (64, 1276310), (70, 1166912), (80, 1021048), (112, 729320), (128, 638155), (140, 583456), (160, 510524), (224, 364660), (280, 291728), (320, 255262), (448, 182330), (560, 145864), (640, 127631), (896, 91165), (1120, 72932), (2240, 36466), (4480, 18233)]