81020205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8297}}^1$

素因数の和:8346

約数の個数: 48

約数和(自身を含む): 165694464

約数和(自身を除く): 84674259

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 3255, 8297, 9765, 24891, 41485, 58079, 74673, 124455, 174237, 257207, 290395, 373365, 522711, 771621, 871185, 1286035, 1800449, 2314863, 2613555, 3858105, 5401347, 9002245, 11574315, 16204041, 27006735, 81020205]

約数ペア:

[(1, 81020205), (3, 27006735), (5, 16204041), (7, 11574315), (9, 9002245), (15, 5401347), (21, 3858105), (31, 2613555), (35, 2314863), (45, 1800449), (63, 1286035), (93, 871185), (105, 771621), (155, 522711), (217, 373365), (279, 290395), (315, 257207), (465, 174237), (651, 124455), (1085, 74673), (1395, 58079), (1953, 41485), (3255, 24891), (8297, 9765)]