66213880

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1973}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 149234400

約数和(自身を除く): 83020520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 1678, 1973, 3356, 3946, 4195, 6712, 7892, 8390, 9865, 15784, 16780, 19730, 33560, 39460, 78920, 1655347, 3310694, 6621388, 8276735, 13242776, 16553470, 33106940, 66213880]

約数ペア:

[(1, 66213880), (2, 33106940), (4, 16553470), (5, 13242776), (8, 8276735), (10, 6621388), (20, 3310694), (40, 1655347), (839, 78920), (1678, 39460), (1973, 33560), (3356, 19730), (3946, 16780), (4195, 15784), (6712, 9865), (7892, 8390)]