66121040

素因数分解:

$2^4\times 5^1\times {\mathrm{829}}^1\times {\mathrm{997}}^1$

素因数の和:1839

約数の個数: 40

約数和(自身を含む): 154071240

約数和(自身を除く): 87950200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 997, 1658, 1994, 3316, 3988, 4145, 4985, 6632, 7976, 8290, 9970, 13264, 15952, 16580, 19940, 33160, 39880, 66320, 79760, 826513, 1653026, 3306052, 4132565, 6612104, 8265130, 13224208, 16530260, 33060520, 66121040]

約数ペア:

[(1, 66121040), (2, 33060520), (4, 16530260), (5, 13224208), (8, 8265130), (10, 6612104), (16, 4132565), (20, 3306052), (40, 1653026), (80, 826513), (829, 79760), (997, 66320), (1658, 39880), (1994, 33160), (3316, 19940), (3988, 16580), (4145, 15952), (4985, 13264), (6632, 9970), (7976, 8290)]