51911680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{10139}}^1$

素因数の和:10164

約数の個数: 44

約数和(自身を含む): 124539480

約数和(自身を除く): 72627800

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, 10139, 20278, 40556, 50695, 81112, 101390, 162224, 202780, 324448, 405560, 648896, 811120, 1297792, 1622240, 2595584, 3244480, 5191168, 6488960, 10382336, 12977920, 25955840, 51911680]

約数ペア:

[(1, 51911680), (2, 25955840), (4, 12977920), (5, 10382336), (8, 6488960), (10, 5191168), (16, 3244480), (20, 2595584), (32, 1622240), (40, 1297792), (64, 811120), (80, 648896), (128, 405560), (160, 324448), (256, 202780), (320, 162224), (512, 101390), (640, 81112), (1024, 50695), (1280, 40556), (2560, 20278), (5120, 10139)]