81738370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1559}}^1$

素因数の和:1687

約数の個数: 48

約数和(自身を含む): 172860480

約数和(自身を除く): 91122110

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 107, 214, 245, 490, 535, 749, 1070, 1498, 1559, 3118, 3745, 5243, 7490, 7795, 10486, 10913, 15590, 21826, 26215, 52430, 54565, 76391, 109130, 152782, 166813, 333626, 381955, 763910, 834065, 1167691, 1668130, 2335382, 5838455, 8173837, 11676910, 16347674, 40869185, 81738370]

約数ペア:

[(1, 81738370), (2, 40869185), (5, 16347674), (7, 11676910), (10, 8173837), (14, 5838455), (35, 2335382), (49, 1668130), (70, 1167691), (98, 834065), (107, 763910), (214, 381955), (245, 333626), (490, 166813), (535, 152782), (749, 109130), (1070, 76391), (1498, 54565), (1559, 52430), (3118, 26215), (3745, 21826), (5243, 15590), (7490, 10913), (7795, 10486)]