66455560

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{15527}}^1$

素因数の和:15645

約数の個数: 32

約数和(自身を含む): 150932160

約数和(自身を除く): 84476600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 15527, 31054, 62108, 77635, 124216, 155270, 310540, 621080, 1661389, 3322778, 6645556, 8306945, 13291112, 16613890, 33227780, 66455560]

約数ペア:

[(1, 66455560), (2, 33227780), (4, 16613890), (5, 13291112), (8, 8306945), (10, 6645556), (20, 3322778), (40, 1661389), (107, 621080), (214, 310540), (428, 155270), (535, 124216), (856, 77635), (1070, 62108), (2140, 31054), (4280, 15527)]