4020770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 7883568

約数和(自身を除く): 3862798

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 197, 314, 394, 785, 985, 1570, 1970, 2041, 2561, 4082, 5122, 10205, 12805, 20410, 25610, 30929, 61858, 154645, 309290, 402077, 804154, 2010385, 4020770]

約数ペア:

[(1, 4020770), (2, 2010385), (5, 804154), (10, 402077), (13, 309290), (26, 154645), (65, 61858), (130, 30929), (157, 25610), (197, 20410), (314, 12805), (394, 10205), (785, 5122), (985, 4082), (1570, 2561), (1970, 2041)]