20884351495

素因数分解:

$5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{317}}^1\times {\mathrm{2467}}^1$

素因数の和:2912

約数の個数: 48

約数和(自身を含む): 29525078880

約数和(自身を除く): 8640727385

約数列:

[1, 5, 7, 35, 49, 109, 245, 317, 545, 763, 1585, 2219, 2467, 3815, 5341, 11095, 12335, 15533, 17269, 26705, 34553, 77665, 86345, 120883, 172765, 241871, 268903, 604415, 782039, 1209355, 1344515, 1693097, 1882321, 3910195, 5474273, 8465485, 9411605, 13176247, 27371365, 38319911, 65881235, 85242251, 191599555, 426211255, 596695757, 2983478785, 4176870299, 20884351495]

約数ペア:

[(1, 20884351495), (5, 4176870299), (7, 2983478785), (35, 596695757), (49, 426211255), (109, 191599555), (245, 85242251), (317, 65881235), (545, 38319911), (763, 27371365), (1585, 13176247), (2219, 9411605), (2467, 8465485), (3815, 5474273), (5341, 3910195), (11095, 1882321), (12335, 1693097), (15533, 1344515), (17269, 1209355), (26705, 782039), (34553, 604415), (77665, 268903), (86345, 241871), (120883, 172765)]