1990457859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1\times {\mathrm{577}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 2883988800

約数和(自身を除く): 893530941

約数列:

[1, 3, 13, 39, 197, 449, 577, 591, 1347, 1731, 2561, 5837, 7501, 7683, 17511, 22503, 88453, 113669, 259073, 265359, 341007, 777219, 1149889, 1477697, 3367949, 3449667, 4433091, 10103847, 51037381, 153112143, 663485953, 1990457859]

約数ペア:

[(1, 1990457859), (3, 663485953), (13, 153112143), (39, 51037381), (197, 10103847), (449, 4433091), (577, 3449667), (591, 3367949), (1347, 1477697), (1731, 1149889), (2561, 777219), (5837, 341007), (7501, 265359), (7683, 259073), (17511, 113669), (22503, 88453)]