51735215

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 72990720

約数和(自身を除く): 21255505

約数列:

[1, 5, 7, 35, 71, 109, 191, 355, 497, 545, 763, 955, 1337, 2485, 3815, 6685, 7739, 13561, 20819, 38695, 54173, 67805, 94927, 104095, 145733, 270865, 474635, 728665, 1478149, 7390745, 10347043, 51735215]

約数ペア:

[(1, 51735215), (5, 10347043), (7, 7390745), (35, 1478149), (71, 728665), (109, 474635), (191, 270865), (355, 145733), (497, 104095), (545, 94927), (763, 67805), (955, 54173), (1337, 38695), (2485, 20819), (3815, 13561), (6685, 7739)]