20210852260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{810379}}^1$

素因数の和:810460

約数の個数: 48

約数和(自身を含む): 44927467200

約数和(自身を除く): 24716614940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 4988, 6235, 12470, 24940, 810379, 1620758, 3241516, 4051895, 8103790, 16207580, 23500991, 34846297, 47001982, 69692594, 94003964, 117504955, 139385188, 174231485, 235009910, 348462970, 470019820, 696925940, 1010542613, 2021085226, 4042170452, 5052713065, 10105426130, 20210852260]

約数ペア:

[(1, 20210852260), (2, 10105426130), (4, 5052713065), (5, 4042170452), (10, 2021085226), (20, 1010542613), (29, 696925940), (43, 470019820), (58, 348462970), (86, 235009910), (116, 174231485), (145, 139385188), (172, 117504955), (215, 94003964), (290, 69692594), (430, 47001982), (580, 34846297), (860, 23500991), (1247, 16207580), (2494, 8103790), (4988, 4051895), (6235, 3241516), (12470, 1620758), (24940, 810379)]