30698920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109639}}^1$

素因数の和:109657

約数の個数: 32

約数和(自身を含む): 78940800

約数和(自身を除く): 48241880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 109639, 219278, 438556, 548195, 767473, 877112, 1096390, 1534946, 2192780, 3069892, 3837365, 4385560, 6139784, 7674730, 15349460, 30698920]

約数ペア:

[(1, 30698920), (2, 15349460), (4, 7674730), (5, 6139784), (7, 4385560), (8, 3837365), (10, 3069892), (14, 2192780), (20, 1534946), (28, 1096390), (35, 877112), (40, 767473), (56, 548195), (70, 438556), (140, 219278), (280, 109639)]