66520468

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{33461}}^1$

素因数の和:33543

約数の個数: 24

約数和(自身を含む): 134918784

約数和(自身を除く): 68398316

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 33461, 66922, 133844, 234227, 468454, 936908, 2375731, 4751462, 9502924, 16630117, 33260234, 66520468]

約数ペア:

[(1, 66520468), (2, 33260234), (4, 16630117), (7, 9502924), (14, 4751462), (28, 2375731), (71, 936908), (142, 468454), (284, 234227), (497, 133844), (994, 66922), (1988, 33461)]