20090420980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1009}}^1\times {\mathrm{142223}}^1$

素因数の和:143248

約数の個数: 48

約数和(自身を含む): 48265136640

約数和(自身を除く): 28174715660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1009, 2018, 4036, 5045, 7063, 10090, 14126, 20180, 28252, 35315, 70630, 141260, 142223, 284446, 568892, 711115, 995561, 1422230, 1991122, 2844460, 3982244, 4977805, 9955610, 19911220, 143503007, 287006014, 574012028, 717515035, 1004521049, 1435030070, 2009042098, 2870060140, 4018084196, 5022605245, 10045210490, 20090420980]

約数ペア:

[(1, 20090420980), (2, 10045210490), (4, 5022605245), (5, 4018084196), (7, 2870060140), (10, 2009042098), (14, 1435030070), (20, 1004521049), (28, 717515035), (35, 574012028), (70, 287006014), (140, 143503007), (1009, 19911220), (2018, 9955610), (4036, 4977805), (5045, 3982244), (7063, 2844460), (10090, 1991122), (14126, 1422230), (20180, 995561), (28252, 711115), (35315, 568892), (70630, 284446), (141260, 142223)]