81218774

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1723}}^1$

素因数の和:1789

約数の個数: 48

約数和(自身を含む): 156835728

約数和(自身を除く): 75616954

約数列:

[1, 2, 7, 13, 14, 26, 37, 49, 74, 91, 98, 182, 259, 481, 518, 637, 962, 1274, 1723, 1813, 3367, 3446, 3626, 6734, 12061, 22399, 23569, 24122, 44798, 47138, 63751, 84427, 127502, 156793, 168854, 313586, 446257, 828763, 892514, 1097551, 1657526, 2195102, 3123799, 5801341, 6247598, 11602682, 40609387, 81218774]

約数ペア:

[(1, 81218774), (2, 40609387), (7, 11602682), (13, 6247598), (14, 5801341), (26, 3123799), (37, 2195102), (49, 1657526), (74, 1097551), (91, 892514), (98, 828763), (182, 446257), (259, 313586), (481, 168854), (518, 156793), (637, 127502), (962, 84427), (1274, 63751), (1723, 47138), (1813, 44798), (3367, 24122), (3446, 23569), (3626, 22399), (6734, 12061)]