20775882010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{811241}}^1$

素因数の和:811458

約数の個数: 32

約数和(自身を含む): 40477730832

約数和(自身を除く): 19701848822

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1970, 2561, 5122, 12805, 25610, 811241, 1622482, 4056205, 8112410, 10546133, 21092266, 52730665, 105461330, 159814477, 319628954, 799072385, 1598144770, 2077588201, 4155176402, 10387941005, 20775882010]

約数ペア:

[(1, 20775882010), (2, 10387941005), (5, 4155176402), (10, 2077588201), (13, 1598144770), (26, 799072385), (65, 319628954), (130, 159814477), (197, 105461330), (394, 52730665), (985, 21092266), (1970, 10546133), (2561, 8112410), (5122, 4056205), (12805, 1622482), (25610, 811241)]