51176960

素因数分解:

$2^9\times 5^1\times {\mathrm{19991}}^1$

素因数の和:20014

約数の個数: 40

約数和(自身を含む): 122710896

約数和(自身を除く): 71533936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 19991, 39982, 79964, 99955, 159928, 199910, 319856, 399820, 639712, 799640, 1279424, 1599280, 2558848, 3198560, 5117696, 6397120, 10235392, 12794240, 25588480, 51176960]

約数ペア:

[(1, 51176960), (2, 25588480), (4, 12794240), (5, 10235392), (8, 6397120), (10, 5117696), (16, 3198560), (20, 2558848), (32, 1599280), (40, 1279424), (64, 799640), (80, 639712), (128, 399820), (160, 319856), (256, 199910), (320, 159928), (512, 99955), (640, 79964), (1280, 39982), (2560, 19991)]