202176280

素因数分解:

$2^3\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{2531}}^1$

素因数の和:4539

約数の個数: 32

約数和(自身を含む): 455304240

約数和(自身を除く): 253127960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1997, 2531, 3994, 5062, 7988, 9985, 10124, 12655, 15976, 19970, 20248, 25310, 39940, 50620, 79880, 101240, 5054407, 10108814, 20217628, 25272035, 40435256, 50544070, 101088140, 202176280]

約数ペア:

[(1, 202176280), (2, 101088140), (4, 50544070), (5, 40435256), (8, 25272035), (10, 20217628), (20, 10108814), (40, 5054407), (1997, 101240), (2531, 79880), (3994, 50620), (5062, 39940), (7988, 25310), (9985, 20248), (10124, 19970), (12655, 15976)]