19959888910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{275651}}^1$

素因数の和:276228

約数の個数: 32

約数和(自身を含む): 38761081632

約数和(自身を除く): 18801192722

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 557, 1114, 2785, 5570, 7241, 14482, 36205, 72410, 275651, 551302, 1378255, 2756510, 3583463, 7166926, 17917315, 35834630, 153537607, 307075214, 767688035, 1535376070, 1995988891, 3991977782, 9979944455, 19959888910]

約数ペア:

[(1, 19959888910), (2, 9979944455), (5, 3991977782), (10, 1995988891), (13, 1535376070), (26, 767688035), (65, 307075214), (130, 153537607), (557, 35834630), (1114, 17917315), (2785, 7166926), (5570, 3583463), (7241, 2756510), (14482, 1378255), (36205, 551302), (72410, 275651)]