66406400

素因数分解:

$2^{11}\times 5^2\times {\mathrm{1297}}^1$

素因数の和:1329

約数の個数: 72

約数和(自身を含む): 164774610

約数和(自身を除く): 98368210

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1297, 1600, 2048, 2560, 2594, 3200, 5120, 5188, 6400, 6485, 10240, 10376, 12800, 12970, 20752, 25600, 25940, 32425, 41504, 51200, 51880, 64850, 83008, 103760, 129700, 166016, 207520, 259400, 332032, 415040, 518800, 664064, 830080, 1037600, 1328128, 1660160, 2075200, 2656256, 3320320, 4150400, 6640640, 8300800, 13281280, 16601600, 33203200, 66406400]

約数ペア:

[(1, 66406400), (2, 33203200), (4, 16601600), (5, 13281280), (8, 8300800), (10, 6640640), (16, 4150400), (20, 3320320), (25, 2656256), (32, 2075200), (40, 1660160), (50, 1328128), (64, 1037600), (80, 830080), (100, 664064), (128, 518800), (160, 415040), (200, 332032), (256, 259400), (320, 207520), (400, 166016), (512, 129700), (640, 103760), (800, 83008), (1024, 64850), (1280, 51880), (1297, 51200), (1600, 41504), (2048, 32425), (2560, 25940), (2594, 25600), (3200, 20752), (5120, 12970), (5188, 12800), (6400, 10376), (6485, 10240)]