6640640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1297}}^1$

素因数の和:1322

約数の個数: 44

約数和(自身を含む): 15942036

約数和(自身を除く): 9301396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1297, 2560, 2594, 5120, 5188, 6485, 10376, 12970, 20752, 25940, 41504, 51880, 83008, 103760, 166016, 207520, 332032, 415040, 664064, 830080, 1328128, 1660160, 3320320, 6640640]

約数ペア:

[(1, 6640640), (2, 3320320), (4, 1660160), (5, 1328128), (8, 830080), (10, 664064), (16, 415040), (20, 332032), (32, 207520), (40, 166016), (64, 103760), (80, 83008), (128, 51880), (160, 41504), (256, 25940), (320, 20752), (512, 12970), (640, 10376), (1024, 6485), (1280, 5188), (1297, 5120), (2560, 2594)]