61438900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{19819}}^1$

素因数の和:19864

約数の個数: 36

約数和(自身を含む): 137630080

約数和(自身を除く): 76191180

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 19819, 39638, 79276, 99095, 198190, 396380, 495475, 614389, 990950, 1228778, 1981900, 2457556, 3071945, 6143890, 12287780, 15359725, 30719450, 61438900]

約数ペア:

[(1, 61438900), (2, 30719450), (4, 15359725), (5, 12287780), (10, 6143890), (20, 3071945), (25, 2457556), (31, 1981900), (50, 1228778), (62, 990950), (100, 614389), (124, 495475), (155, 396380), (310, 198190), (620, 99095), (775, 79276), (1550, 39638), (3100, 19819)]