128439272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{6269}}^1$

素因数の和:6485

約数の個数: 32

約数和(自身を含む): 260706600

約数和(自身を除く): 132267328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 1576, 2561, 5122, 6269, 10244, 12538, 20488, 25076, 50152, 81497, 162994, 325988, 651976, 1234993, 2469986, 4939972, 9879944, 16054909, 32109818, 64219636, 128439272]

約数ペア:

[(1, 128439272), (2, 64219636), (4, 32109818), (8, 16054909), (13, 9879944), (26, 4939972), (52, 2469986), (104, 1234993), (197, 651976), (394, 325988), (788, 162994), (1576, 81497), (2561, 50152), (5122, 25076), (6269, 20488), (10244, 12538)]