66120280

素因数分解:

$2^3\times 5^1\times {\mathrm{1653007}}^1$

素因数の和:1653018

約数の個数: 16

約数和(自身を含む): 148770720

約数和(自身を除く): 82650440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1653007, 3306014, 6612028, 8265035, 13224056, 16530070, 33060140, 66120280]

約数ペア:

[(1, 66120280), (2, 33060140), (4, 16530070), (5, 13224056), (8, 8265035), (10, 6612028), (20, 3306014), (40, 1653007)]