213905920

素因数分解:

$2^9\times 5^1\times {\mathrm{83557}}^1$

素因数の和:83580

約数の個数: 40

約数和(自身を含む): 512879004

約数和(自身を除く): 298973084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 83557, 167114, 334228, 417785, 668456, 835570, 1336912, 1671140, 2673824, 3342280, 5347648, 6684560, 10695296, 13369120, 21390592, 26738240, 42781184, 53476480, 106952960, 213905920]

約数ペア:

[(1, 213905920), (2, 106952960), (4, 53476480), (5, 42781184), (8, 26738240), (10, 21390592), (16, 13369120), (20, 10695296), (32, 6684560), (40, 5347648), (64, 3342280), (80, 2673824), (128, 1671140), (160, 1336912), (256, 835570), (320, 668456), (512, 417785), (640, 334228), (1280, 167114), (2560, 83557)]