13777791125

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{507937}}^1$

素因数の和:507990

約数の個数: 32

約数和(自身を含む): 20285011968

約数和(自身を除く): 6507220843

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 775, 875, 1085, 3875, 5425, 27125, 507937, 2539685, 3555559, 12698425, 15746047, 17777795, 63492125, 78730235, 88888975, 110222329, 393651175, 444444875, 551111645, 1968255875, 2755558225, 13777791125]

約数ペア:

[(1, 13777791125), (5, 2755558225), (7, 1968255875), (25, 551111645), (31, 444444875), (35, 393651175), (125, 110222329), (155, 88888975), (175, 78730235), (217, 63492125), (775, 17777795), (875, 15746047), (1085, 12698425), (3875, 3555559), (5425, 2539685), (27125, 507937)]