20542507390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{672863}}^1$

素因数の和:672984

約数の個数: 32

約数和(自身を含む): 38369396736

約数和(自身を除く): 17826889346

約数列:

[1, 2, 5, 10, 43, 71, 86, 142, 215, 355, 430, 710, 3053, 6106, 15265, 30530, 672863, 1345726, 3364315, 6728630, 28933109, 47773273, 57866218, 95546546, 144665545, 238866365, 289331090, 477732730, 2054250739, 4108501478, 10271253695, 20542507390]

約数ペア:

[(1, 20542507390), (2, 10271253695), (5, 4108501478), (10, 2054250739), (43, 477732730), (71, 289331090), (86, 238866365), (142, 144665545), (215, 95546546), (355, 57866218), (430, 47773273), (710, 28933109), (3053, 6728630), (6106, 3364315), (15265, 1345726), (30530, 672863)]