18730180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{379}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 45198720

約数和(自身を除く): 26468540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 379, 706, 758, 1412, 1516, 1765, 1895, 2471, 2653, 3530, 3790, 4942, 5306, 7060, 7580, 9884, 10612, 12355, 13265, 24710, 26530, 49420, 53060, 133787, 267574, 535148, 668935, 936509, 1337870, 1873018, 2675740, 3746036, 4682545, 9365090, 18730180]

約数ペア:

[(1, 18730180), (2, 9365090), (4, 4682545), (5, 3746036), (7, 2675740), (10, 1873018), (14, 1337870), (20, 936509), (28, 668935), (35, 535148), (70, 267574), (140, 133787), (353, 53060), (379, 49420), (706, 26530), (758, 24710), (1412, 13265), (1516, 12355), (1765, 10612), (1895, 9884), (2471, 7580), (2653, 7060), (3530, 5306), (3790, 4942)]