20133081880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1958471}}^1$

素因数の和:1958739

約数の個数: 32

約数和(自身を含む): 45475719840

約数和(自身を除く): 25342637960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 1958471, 3916942, 7833884, 9792355, 15667768, 19584710, 39169420, 78338840, 503327047, 1006654094, 2013308188, 2516635235, 4026616376, 5033270470, 10066540940, 20133081880]

約数ペア:

[(1, 20133081880), (2, 10066540940), (4, 5033270470), (5, 4026616376), (8, 2516635235), (10, 2013308188), (20, 1006654094), (40, 503327047), (257, 78338840), (514, 39169420), (1028, 19584710), (1285, 15667768), (2056, 9792355), (2570, 7833884), (5140, 3916942), (10280, 1958471)]