306040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1093}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 787680

約数和(自身を除く): 481640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1093, 2186, 4372, 5465, 7651, 8744, 10930, 15302, 21860, 30604, 38255, 43720, 61208, 76510, 153020, 306040]

約数ペア:

[(1, 306040), (2, 153020), (4, 76510), (5, 61208), (7, 43720), (8, 38255), (10, 30604), (14, 21860), (20, 15302), (28, 10930), (35, 8744), (40, 7651), (56, 5465), (70, 4372), (140, 2186), (280, 1093)]