209215580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{3943}}^1$

素因数の和:4338

約数の個数: 48

約数和(自身を含む): 503569920

約数和(自身を除く): 294354340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 379, 758, 1516, 1895, 2653, 3790, 3943, 5306, 7580, 7886, 10612, 13265, 15772, 19715, 26530, 27601, 39430, 53060, 55202, 78860, 110404, 138005, 276010, 552020, 1494397, 2988794, 5977588, 7471985, 10460779, 14943970, 20921558, 29887940, 41843116, 52303895, 104607790, 209215580]

約数ペア:

[(1, 209215580), (2, 104607790), (4, 52303895), (5, 41843116), (7, 29887940), (10, 20921558), (14, 14943970), (20, 10460779), (28, 7471985), (35, 5977588), (70, 2988794), (140, 1494397), (379, 552020), (758, 276010), (1516, 138005), (1895, 110404), (2653, 78860), (3790, 55202), (3943, 53060), (5306, 39430), (7580, 27601), (7886, 26530), (10612, 19715), (13265, 15772)]