51990770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{911}}^1$

素因数の和:1370

約数の個数: 32

約数和(自身を含む): 101122560

約数和(自身を除く): 49131790

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 878, 911, 1822, 2195, 4390, 4555, 5707, 9110, 11414, 11843, 23686, 28535, 57070, 59215, 118430, 399929, 799858, 1999645, 3999290, 5199077, 10398154, 25995385, 51990770]

約数ペア:

[(1, 51990770), (2, 25995385), (5, 10398154), (10, 5199077), (13, 3999290), (26, 1999645), (65, 799858), (130, 399929), (439, 118430), (878, 59215), (911, 57070), (1822, 28535), (2195, 23686), (4390, 11843), (4555, 11414), (5707, 9110)]