66638900

素因数分解:

$2^2\times 5^2\times {\mathrm{271}}^1\times {\mathrm{2459}}^1$

素因数の和:2744

約数の個数: 36

約数和(自身を含む): 145199040

約数和(自身を除く): 78560140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 271, 542, 1084, 1355, 2459, 2710, 4918, 5420, 6775, 9836, 12295, 13550, 24590, 27100, 49180, 61475, 122950, 245900, 666389, 1332778, 2665556, 3331945, 6663890, 13327780, 16659725, 33319450, 66638900]

約数ペア:

[(1, 66638900), (2, 33319450), (4, 16659725), (5, 13327780), (10, 6663890), (20, 3331945), (25, 2665556), (50, 1332778), (100, 666389), (271, 245900), (542, 122950), (1084, 61475), (1355, 49180), (2459, 27100), (2710, 24590), (4918, 13550), (5420, 12295), (6775, 9836)]