1421840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2539}}^1$

素因数の和:2559

約数の個数: 40

約数和(自身を含む): 3779520

約数和(自身を除く): 2357680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2539, 5078, 10156, 12695, 17773, 20312, 25390, 35546, 40624, 50780, 71092, 88865, 101560, 142184, 177730, 203120, 284368, 355460, 710920, 1421840]

約数ペア:

[(1, 1421840), (2, 710920), (4, 355460), (5, 284368), (7, 203120), (8, 177730), (10, 142184), (14, 101560), (16, 88865), (20, 71092), (28, 50780), (35, 40624), (40, 35546), (56, 25390), (70, 20312), (80, 17773), (112, 12695), (140, 10156), (280, 5078), (560, 2539)]