821410660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{308801}}^1$

素因数の和:308836

約数の個数: 48

約数和(自身を含む): 2075149440

約数和(自身を除く): 1253738780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 308801, 617602, 1235204, 1544005, 2161607, 3088010, 4323214, 5867219, 6176020, 8646428, 10808035, 11734438, 21616070, 23468876, 29336095, 41070533, 43232140, 58672190, 82141066, 117344380, 164282132, 205352665, 410705330, 821410660]

約数ペア:

[(1, 821410660), (2, 410705330), (4, 205352665), (5, 164282132), (7, 117344380), (10, 82141066), (14, 58672190), (19, 43232140), (20, 41070533), (28, 29336095), (35, 23468876), (38, 21616070), (70, 11734438), (76, 10808035), (95, 8646428), (133, 6176020), (140, 5867219), (190, 4323214), (266, 3088010), (380, 2161607), (532, 1544005), (665, 1235204), (1330, 617602), (2660, 308801)]