258065920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{14401}}^1$

素因数の和:14431

約数の個数: 80

約数和(自身を含む): 707195808

約数和(自身を除く): 449129888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 14401, 17920, 28802, 57604, 72005, 100807, 115208, 144010, 201614, 230416, 288020, 403228, 460832, 504035, 576040, 806456, 921664, 1008070, 1152080, 1612912, 1843328, 2016140, 2304160, 3225824, 3686656, 4032280, 4608320, 6451648, 7373312, 8064560, 9216640, 12903296, 16129120, 18433280, 25806592, 32258240, 36866560, 51613184, 64516480, 129032960, 258065920]

約数ペア:

[(1, 258065920), (2, 129032960), (4, 64516480), (5, 51613184), (7, 36866560), (8, 32258240), (10, 25806592), (14, 18433280), (16, 16129120), (20, 12903296), (28, 9216640), (32, 8064560), (35, 7373312), (40, 6451648), (56, 4608320), (64, 4032280), (70, 3686656), (80, 3225824), (112, 2304160), (128, 2016140), (140, 1843328), (160, 1612912), (224, 1152080), (256, 1008070), (280, 921664), (320, 806456), (448, 576040), (512, 504035), (560, 460832), (640, 403228), (896, 288020), (1120, 230416), (1280, 201614), (1792, 144010), (2240, 115208), (2560, 100807), (3584, 72005), (4480, 57604), (8960, 28802), (14401, 17920)]