20199731020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1101403}}^1$

素因数の和:1101550

約数の個数: 48

約数和(自身を含む): 48849470208

約数和(自身を除く): 28649739188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 18340, 1101403, 2202806, 4405612, 5507015, 7709821, 11014030, 15419642, 22028060, 30839284, 38549105, 77098210, 144283793, 154196420, 288567586, 577135172, 721418965, 1009986551, 1442837930, 2019973102, 2885675860, 4039946204, 5049932755, 10099865510, 20199731020]

約数ペア:

[(1, 20199731020), (2, 10099865510), (4, 5049932755), (5, 4039946204), (7, 2885675860), (10, 2019973102), (14, 1442837930), (20, 1009986551), (28, 721418965), (35, 577135172), (70, 288567586), (131, 154196420), (140, 144283793), (262, 77098210), (524, 38549105), (655, 30839284), (917, 22028060), (1310, 15419642), (1834, 11014030), (2620, 7709821), (3668, 5507015), (4585, 4405612), (9170, 2202806), (18340, 1101403)]