81730064

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{641}}^1$

素因数の和:1275

約数の個数: 40

約数和(自身を含む): 171077592

約数和(自身を除く): 89347528

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 613, 641, 1226, 1282, 2452, 2564, 4904, 5128, 7969, 8333, 9808, 10256, 15938, 16666, 31876, 33332, 63752, 66664, 127504, 133328, 392933, 785866, 1571732, 3143464, 5108129, 6286928, 10216258, 20432516, 40865032, 81730064]

約数ペア:

[(1, 81730064), (2, 40865032), (4, 20432516), (8, 10216258), (13, 6286928), (16, 5108129), (26, 3143464), (52, 1571732), (104, 785866), (208, 392933), (613, 133328), (641, 127504), (1226, 66664), (1282, 63752), (2452, 33332), (2564, 31876), (4904, 16666), (5128, 15938), (7969, 10256), (8333, 9808)]