20802359305

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{78691}}^1$

素因数の和:78806

約数の個数: 48

約数和(自身を含む): 31649292864

約数和(自身を除く): 10846933559

約数列:

[1, 5, 7, 13, 35, 49, 65, 83, 91, 245, 415, 455, 581, 637, 1079, 2905, 3185, 4067, 5395, 7553, 20335, 37765, 52871, 78691, 264355, 393455, 550837, 1022983, 2754185, 3855859, 5114915, 6531353, 7160881, 19279295, 32656765, 35804405, 45719471, 50126167, 84907589, 228597355, 250630835, 320036297, 424537945, 594353123, 1600181485, 2971765615, 4160471861, 20802359305]

約数ペア:

[(1, 20802359305), (5, 4160471861), (7, 2971765615), (13, 1600181485), (35, 594353123), (49, 424537945), (65, 320036297), (83, 250630835), (91, 228597355), (245, 84907589), (415, 50126167), (455, 45719471), (581, 35804405), (637, 32656765), (1079, 19279295), (2905, 7160881), (3185, 6531353), (4067, 5114915), (5395, 3855859), (7553, 2754185), (20335, 1022983), (37765, 550837), (52871, 393455), (78691, 264355)]