83821640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{299363}}^1$

素因数の和:299381

約数の個数: 32

約数和(自身を含む): 215542080

約数和(自身を除く): 131720440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 299363, 598726, 1197452, 1496815, 2095541, 2394904, 2993630, 4191082, 5987260, 8382164, 10477705, 11974520, 16764328, 20955410, 41910820, 83821640]

約数ペア:

[(1, 83821640), (2, 41910820), (4, 20955410), (5, 16764328), (7, 11974520), (8, 10477705), (10, 8382164), (14, 5987260), (20, 4191082), (28, 2993630), (35, 2394904), (40, 2095541), (56, 1496815), (70, 1197452), (140, 598726), (280, 299363)]