42720895

素因数分解:

$5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1373}}^1$

素因数の和:1519

約数の個数: 24

約数和(自身を含む): 60148224

約数和(自身を除く): 17427329

約数列:

[1, 5, 7, 35, 49, 127, 245, 635, 889, 1373, 4445, 6223, 6865, 9611, 31115, 48055, 67277, 174371, 336385, 871855, 1220597, 6102985, 8544179, 42720895]

約数ペア:

[(1, 42720895), (5, 8544179), (7, 6102985), (35, 1220597), (49, 871855), (127, 336385), (245, 174371), (635, 67277), (889, 48055), (1373, 31115), (4445, 9611), (6223, 6865)]