20164590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:961

約数の個数: 48

約数和(自身を含む): 52650000

約数和(自身を除く): 32485410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 449, 499, 898, 998, 1347, 1497, 2245, 2495, 2694, 2994, 4041, 4490, 4491, 4990, 6735, 7485, 8082, 8982, 13470, 14970, 20205, 22455, 40410, 44910, 224051, 448102, 672153, 1120255, 1344306, 2016459, 2240510, 3360765, 4032918, 6721530, 10082295, 20164590]

約数ペア:

[(1, 20164590), (2, 10082295), (3, 6721530), (5, 4032918), (6, 3360765), (9, 2240510), (10, 2016459), (15, 1344306), (18, 1120255), (30, 672153), (45, 448102), (90, 224051), (449, 44910), (499, 40410), (898, 22455), (998, 20205), (1347, 14970), (1497, 13470), (2245, 8982), (2495, 8082), (2694, 7485), (2994, 6735), (4041, 4990), (4490, 4491)]