66966580

素因数分解:

$2^2\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{2081}}^1$

素因数の和:3699

約数の個数: 24

約数和(自身を含む): 140784840

約数和(自身を除く): 73818260

約数列:

[1, 2, 4, 5, 10, 20, 1609, 2081, 3218, 4162, 6436, 8045, 8324, 10405, 16090, 20810, 32180, 41620, 3348329, 6696658, 13393316, 16741645, 33483290, 66966580]

約数ペア:

[(1, 66966580), (2, 33483290), (4, 16741645), (5, 13393316), (10, 6696658), (20, 3348329), (1609, 41620), (2081, 32180), (3218, 20810), (4162, 16090), (6436, 10405), (8045, 8324)]