20195671685

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^2\times {\mathrm{22153}}^1$

素因数の和:22294

約数の個数: 36

約数和(自身を含む): 28662535044

約数和(自身を除く): 8466863359

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 3721, 14945, 18605, 22153, 26047, 110765, 130235, 155071, 182329, 775355, 911645, 1085497, 1351333, 5427485, 6756665, 9459331, 47296655, 66215317, 82431313, 331076585, 412156565, 577019191, 2885095955, 4039134337, 20195671685]

約数ペア:

[(1, 20195671685), (5, 4039134337), (7, 2885095955), (35, 577019191), (49, 412156565), (61, 331076585), (245, 82431313), (305, 66215317), (427, 47296655), (2135, 9459331), (2989, 6756665), (3721, 5427485), (14945, 1351333), (18605, 1085497), (22153, 911645), (26047, 775355), (110765, 182329), (130235, 155071)]