20512781530

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{208739}}^1$

素因数の和:209094

約数の個数: 32

約数和(自身を含む): 38234488320

約数和(自身を除く): 17721706790

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 317, 634, 1585, 3170, 9827, 19654, 49135, 98270, 208739, 417478, 1043695, 2087390, 6470909, 12941818, 32354545, 64709090, 66170263, 132340526, 330851315, 661702630, 2051278153, 4102556306, 10256390765, 20512781530]

約数ペア:

[(1, 20512781530), (2, 10256390765), (5, 4102556306), (10, 2051278153), (31, 661702630), (62, 330851315), (155, 132340526), (310, 66170263), (317, 64709090), (634, 32354545), (1585, 12941818), (3170, 6470909), (9827, 2087390), (19654, 1043695), (49135, 417478), (98270, 208739)]