51399680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{10039}}^1$

素因数の和:10064

約数の個数: 44

約数和(自身を含む): 123311280

約数和(自身を除く): 71911600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 10039, 20078, 40156, 50195, 80312, 100390, 160624, 200780, 321248, 401560, 642496, 803120, 1284992, 1606240, 2569984, 3212480, 5139968, 6424960, 10279936, 12849920, 25699840, 51399680]

約数ペア:

[(1, 51399680), (2, 25699840), (4, 12849920), (5, 10279936), (8, 6424960), (10, 5139968), (16, 3212480), (20, 2569984), (32, 1606240), (40, 1284992), (64, 803120), (80, 642496), (128, 401560), (160, 321248), (256, 200780), (320, 160624), (512, 100390), (640, 80312), (1024, 50195), (1280, 40156), (2560, 20078), (5120, 10039)]