20705510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5581}}^1$

素因数の和:5648

約数の個数: 32

約数和(自身を含む): 43405632

約数和(自身を除く): 22700122

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5581, 11162, 27905, 39067, 55810, 78134, 195335, 295793, 390670, 591586, 1478965, 2070551, 2957930, 4141102, 10352755, 20705510]

約数ペア:

[(1, 20705510), (2, 10352755), (5, 4141102), (7, 2957930), (10, 2070551), (14, 1478965), (35, 591586), (53, 390670), (70, 295793), (106, 195335), (265, 78134), (371, 55810), (530, 39067), (742, 27905), (1855, 11162), (3710, 5581)]