81511300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{62701}}^1$

素因数の和:62728

約数の個数: 36

約数和(自身を含む): 190488676

約数和(自身を除く): 108977376

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 62701, 125402, 250804, 313505, 627010, 815113, 1254020, 1567525, 1630226, 3135050, 3260452, 4075565, 6270100, 8151130, 16302260, 20377825, 40755650, 81511300]

約数ペア:

[(1, 81511300), (2, 40755650), (4, 20377825), (5, 16302260), (10, 8151130), (13, 6270100), (20, 4075565), (25, 3260452), (26, 3135050), (50, 1630226), (52, 1567525), (65, 1254020), (100, 815113), (130, 627010), (260, 313505), (325, 250804), (650, 125402), (1300, 62701)]