19985234555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{106279}}^1$

素因数の和:106571

約数の個数: 32

約数和(自身を含む): 28282383360

約数和(自身を除く): 8297148805

約数列:

[1, 5, 11, 13, 55, 65, 143, 263, 715, 1315, 2893, 3419, 14465, 17095, 37609, 106279, 188045, 531395, 1169069, 1381627, 5845345, 6908135, 15197897, 27951377, 75989485, 139756885, 307465147, 363367901, 1537325735, 1816839505, 3997046911, 19985234555]

約数ペア:

[(1, 19985234555), (5, 3997046911), (11, 1816839505), (13, 1537325735), (55, 363367901), (65, 307465147), (143, 139756885), (263, 75989485), (715, 27951377), (1315, 15197897), (2893, 6908135), (3419, 5845345), (14465, 1381627), (17095, 1169069), (37609, 531395), (106279, 188045)]