20185125980

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1\times {\mathrm{12821}}^1$

素因数の和:13406

約数の個数: 48

約数和(自身を含む): 42702799104

約数和(自身を除く): 22517673124

約数列:

[1, 2, 4, 5, 10, 20, 223, 353, 446, 706, 892, 1115, 1412, 1765, 2230, 3530, 4460, 7060, 12821, 25642, 51284, 64105, 78719, 128210, 157438, 256420, 314876, 393595, 787190, 1574380, 2859083, 4525813, 5718166, 9051626, 11436332, 14295415, 18103252, 22629065, 28590830, 45258130, 57181660, 90516260, 1009256299, 2018512598, 4037025196, 5046281495, 10092562990, 20185125980]

約数ペア:

[(1, 20185125980), (2, 10092562990), (4, 5046281495), (5, 4037025196), (10, 2018512598), (20, 1009256299), (223, 90516260), (353, 57181660), (446, 45258130), (706, 28590830), (892, 22629065), (1115, 18103252), (1412, 14295415), (1765, 11436332), (2230, 9051626), (3530, 5718166), (4460, 4525813), (7060, 2859083), (12821, 1574380), (25642, 787190), (51284, 393595), (64105, 314876), (78719, 256420), (128210, 157438)]