8648780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 20939520

約数和(自身を除く): 12290740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 379, 652, 758, 815, 1141, 1516, 1630, 1895, 2282, 2653, 3260, 3790, 4564, 5306, 5705, 7580, 10612, 11410, 13265, 22820, 26530, 53060, 61777, 123554, 247108, 308885, 432439, 617770, 864878, 1235540, 1729756, 2162195, 4324390, 8648780]

約数ペア:

[(1, 8648780), (2, 4324390), (4, 2162195), (5, 1729756), (7, 1235540), (10, 864878), (14, 617770), (20, 432439), (28, 308885), (35, 247108), (70, 123554), (140, 61777), (163, 53060), (326, 26530), (379, 22820), (652, 13265), (758, 11410), (815, 10612), (1141, 7580), (1516, 5705), (1630, 5306), (1895, 4564), (2282, 3790), (2653, 3260)]