81871712

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{15139}}^1$

素因数の和:15175

約数の個数: 36

約数和(自身を含む): 174549060

約数和(自身を除く): 92677348

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 5408, 15139, 30278, 60556, 121112, 196807, 242224, 393614, 484448, 787228, 1574456, 2558491, 3148912, 5116982, 6297824, 10233964, 20467928, 40935856, 81871712]

約数ペア:

[(1, 81871712), (2, 40935856), (4, 20467928), (8, 10233964), (13, 6297824), (16, 5116982), (26, 3148912), (32, 2558491), (52, 1574456), (104, 787228), (169, 484448), (208, 393614), (338, 242224), (416, 196807), (676, 121112), (1352, 60556), (2704, 30278), (5408, 15139)]