81307990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{1049}}^1$

素因数の和:1416

約数の個数: 32

約数和(自身を含む): 153316800

約数和(自身を除く): 72008810

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 337, 674, 1049, 1685, 2098, 3370, 5245, 7751, 10490, 15502, 24127, 38755, 48254, 77510, 120635, 241270, 353513, 707026, 1767565, 3535130, 8130799, 16261598, 40653995, 81307990]

約数ペア:

[(1, 81307990), (2, 40653995), (5, 16261598), (10, 8130799), (23, 3535130), (46, 1767565), (115, 707026), (230, 353513), (337, 241270), (674, 120635), (1049, 77510), (1685, 48254), (2098, 38755), (3370, 24127), (5245, 15502), (7751, 10490)]