81131300

素因数分解:

$2^2\times 5^2\times {\mathrm{839}}^1\times {\mathrm{967}}^1$

素因数の和:1820

約数の個数: 36

約数和(自身を含む): 176447040

約数和(自身を除く): 95315740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 839, 967, 1678, 1934, 3356, 3868, 4195, 4835, 8390, 9670, 16780, 19340, 20975, 24175, 41950, 48350, 83900, 96700, 811313, 1622626, 3245252, 4056565, 8113130, 16226260, 20282825, 40565650, 81131300]

約数ペア:

[(1, 81131300), (2, 40565650), (4, 20282825), (5, 16226260), (10, 8113130), (20, 4056565), (25, 3245252), (50, 1622626), (100, 811313), (839, 96700), (967, 83900), (1678, 48350), (1934, 41950), (3356, 24175), (3868, 20975), (4195, 19340), (4835, 16780), (8390, 9670)]