81310660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{631}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 181560960

約数和(自身を除く): 100250300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 379, 631, 758, 1262, 1516, 1895, 2524, 3155, 3790, 6310, 6443, 7580, 10727, 12620, 12886, 21454, 25772, 32215, 42908, 53635, 64430, 107270, 128860, 214540, 239149, 478298, 956596, 1195745, 2391490, 4065533, 4782980, 8131066, 16262132, 20327665, 40655330, 81310660]

約数ペア:

[(1, 81310660), (2, 40655330), (4, 20327665), (5, 16262132), (10, 8131066), (17, 4782980), (20, 4065533), (34, 2391490), (68, 1195745), (85, 956596), (170, 478298), (340, 239149), (379, 214540), (631, 128860), (758, 107270), (1262, 64430), (1516, 53635), (1895, 42908), (2524, 32215), (3155, 25772), (3790, 21454), (6310, 12886), (6443, 12620), (7580, 10727)]