30507260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217909}}^1$

素因数の和:217925

約数の個数: 24

約数和(自身を含む): 73217760

約数和(自身を除く): 42710500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217909, 435818, 871636, 1089545, 1525363, 2179090, 3050726, 4358180, 6101452, 7626815, 15253630, 30507260]

約数ペア:

[(1, 30507260), (2, 15253630), (4, 7626815), (5, 6101452), (7, 4358180), (10, 3050726), (14, 2179090), (20, 1525363), (28, 1089545), (35, 871636), (70, 435818), (140, 217909)]