51081320

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4969}}^1$

素因数の和:5237

約数の個数: 32

約数和(自身を含む): 115403400

約数和(自身を除く): 64322080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 4969, 5140, 9938, 10280, 19876, 24845, 39752, 49690, 99380, 198760, 1277033, 2554066, 5108132, 6385165, 10216264, 12770330, 25540660, 51081320]

約数ペア:

[(1, 51081320), (2, 25540660), (4, 12770330), (5, 10216264), (8, 6385165), (10, 5108132), (20, 2554066), (40, 1277033), (257, 198760), (514, 99380), (1028, 49690), (1285, 39752), (2056, 24845), (2570, 19876), (4969, 10280), (5140, 9938)]