81247998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 188116992

約数和(自身を除く): 106868994

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 71, 78, 102, 142, 213, 221, 426, 442, 663, 863, 923, 1207, 1326, 1726, 1846, 2414, 2589, 2769, 3621, 5178, 5538, 7242, 11219, 14671, 15691, 22438, 29342, 31382, 33657, 44013, 47073, 61273, 67314, 88026, 94146, 122546, 183819, 190723, 367638, 381446, 572169, 796549, 1041641, 1144338, 1593098, 2083282, 2389647, 3124923, 4779294, 6249846, 13541333, 27082666, 40623999, 81247998]

約数ペア:

[(1, 81247998), (2, 40623999), (3, 27082666), (6, 13541333), (13, 6249846), (17, 4779294), (26, 3124923), (34, 2389647), (39, 2083282), (51, 1593098), (71, 1144338), (78, 1041641), (102, 796549), (142, 572169), (213, 381446), (221, 367638), (426, 190723), (442, 183819), (663, 122546), (863, 94146), (923, 88026), (1207, 67314), (1326, 61273), (1726, 47073), (1846, 44013), (2414, 33657), (2589, 31382), (2769, 29342), (3621, 22438), (5178, 15691), (5538, 14671), (7242, 11219)]