81313274

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 154828800

約数和(自身を除く): 73515526

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 83, 127, 133, 166, 203, 254, 266, 406, 551, 581, 889, 1102, 1162, 1577, 1778, 2407, 2413, 3154, 3683, 3857, 4814, 4826, 7366, 7714, 10541, 11039, 16849, 16891, 21082, 22078, 25781, 33698, 33782, 45733, 51562, 69977, 73787, 91466, 139954, 147574, 200279, 305689, 320131, 400558, 489839, 611378, 640262, 979678, 1401953, 2139823, 2803906, 4279646, 5808091, 11616182, 40656637, 81313274]

約数ペア:

[(1, 81313274), (2, 40656637), (7, 11616182), (14, 5808091), (19, 4279646), (29, 2803906), (38, 2139823), (58, 1401953), (83, 979678), (127, 640262), (133, 611378), (166, 489839), (203, 400558), (254, 320131), (266, 305689), (406, 200279), (551, 147574), (581, 139954), (889, 91466), (1102, 73787), (1162, 69977), (1577, 51562), (1778, 45733), (2407, 33782), (2413, 33698), (3154, 25781), (3683, 22078), (3857, 21082), (4814, 16891), (4826, 16849), (7366, 11039), (7714, 10541)]