81608306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 145232640

約数和(自身を除く): 63624334

約数列:

[1, 2, 13, 19, 26, 31, 38, 62, 73, 146, 247, 403, 494, 589, 806, 949, 1178, 1387, 1898, 2263, 2774, 4526, 5329, 7657, 10658, 15314, 18031, 29419, 36062, 42997, 58838, 69277, 85994, 101251, 138554, 165199, 202502, 330398, 558961, 1117922, 1316263, 2147587, 2632526, 3138781, 4295174, 6277562, 40804153, 81608306]

約数ペア:

[(1, 81608306), (2, 40804153), (13, 6277562), (19, 4295174), (26, 3138781), (31, 2632526), (38, 2147587), (62, 1316263), (73, 1117922), (146, 558961), (247, 330398), (403, 202502), (494, 165199), (589, 138554), (806, 101251), (949, 85994), (1178, 69277), (1387, 58838), (1898, 42997), (2263, 36062), (2774, 29419), (4526, 18031), (5329, 15314), (7657, 10658)]