1920291205

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{17971}}^1$

素因数の和:18097

約数の個数: 32

約数和(自身を含む): 2732894208

約数和(自身を除く): 812603003

約数列:

[1, 5, 7, 35, 43, 71, 215, 301, 355, 497, 1505, 2485, 3053, 15265, 17971, 21371, 89855, 106855, 125797, 628985, 772753, 1275941, 3863765, 5409271, 6379705, 8931587, 27046355, 44657935, 54865463, 274327315, 384058241, 1920291205]

約数ペア:

[(1, 1920291205), (5, 384058241), (7, 274327315), (35, 54865463), (43, 44657935), (71, 27046355), (215, 8931587), (301, 6379705), (355, 5409271), (497, 3863765), (1505, 1275941), (2485, 772753), (3053, 628985), (15265, 125797), (17971, 106855), (21371, 89855)]