20189780810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{181123}}^1$

素因数の和:181358

約数の個数: 32

約数和(自身を含む): 37088399232

約数和(自身を除く): 16898618422

約数列:

[1, 2, 5, 10, 71, 142, 157, 314, 355, 710, 785, 1570, 11147, 22294, 55735, 111470, 181123, 362246, 905615, 1811230, 12859733, 25719466, 28436311, 56872622, 64298665, 128597330, 142181555, 284363110, 2018978081, 4037956162, 10094890405, 20189780810]

約数ペア:

[(1, 20189780810), (2, 10094890405), (5, 4037956162), (10, 2018978081), (71, 284363110), (142, 142181555), (157, 128597330), (314, 64298665), (355, 56872622), (710, 28436311), (785, 25719466), (1570, 12859733), (11147, 1811230), (22294, 905615), (55735, 362246), (111470, 181123)]