129637820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2531}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 294785568

約数和(自身を除く): 165147748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1970, 2531, 2561, 3940, 5062, 5122, 10124, 10244, 12655, 12805, 25310, 25610, 32903, 50620, 51220, 65806, 131612, 164515, 329030, 498607, 658060, 997214, 1994428, 2493035, 4986070, 6481891, 9972140, 12963782, 25927564, 32409455, 64818910, 129637820]

約数ペア:

[(1, 129637820), (2, 64818910), (4, 32409455), (5, 25927564), (10, 12963782), (13, 9972140), (20, 6481891), (26, 4986070), (52, 2493035), (65, 1994428), (130, 997214), (197, 658060), (260, 498607), (394, 329030), (788, 164515), (985, 131612), (1970, 65806), (2531, 51220), (2561, 50620), (3940, 32903), (5062, 25610), (5122, 25310), (10124, 12805), (10244, 12655)]