81990790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{11597}}^1$

素因数の和:11712

約数の個数: 32

約数和(自身を含む): 170351424

約数和(自身を除く): 88360634

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 505, 707, 1010, 1414, 3535, 7070, 11597, 23194, 57985, 81179, 115970, 162358, 405895, 811790, 1171297, 2342594, 5856485, 8199079, 11712970, 16398158, 40995395, 81990790]

約数ペア:

[(1, 81990790), (2, 40995395), (5, 16398158), (7, 11712970), (10, 8199079), (14, 5856485), (35, 2342594), (70, 1171297), (101, 811790), (202, 405895), (505, 162358), (707, 115970), (1010, 81179), (1414, 57985), (3535, 23194), (7070, 11597)]