78508360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1091}}^1$

素因数の和:1366

約数の個数: 64

約数和(自身を含む): 202849920

約数和(自身を除く): 124341560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1091, 1285, 1799, 2056, 2182, 2570, 3598, 4364, 5140, 5455, 7196, 7637, 8728, 8995, 10280, 10910, 14392, 15274, 17990, 21820, 30548, 35980, 38185, 43640, 61096, 71960, 76370, 152740, 280387, 305480, 560774, 1121548, 1401935, 1962709, 2243096, 2803870, 3925418, 5607740, 7850836, 9813545, 11215480, 15701672, 19627090, 39254180, 78508360]

約数ペア:

[(1, 78508360), (2, 39254180), (4, 19627090), (5, 15701672), (7, 11215480), (8, 9813545), (10, 7850836), (14, 5607740), (20, 3925418), (28, 2803870), (35, 2243096), (40, 1962709), (56, 1401935), (70, 1121548), (140, 560774), (257, 305480), (280, 280387), (514, 152740), (1028, 76370), (1091, 71960), (1285, 61096), (1799, 43640), (2056, 38185), (2182, 35980), (2570, 30548), (3598, 21820), (4364, 17990), (5140, 15274), (5455, 14392), (7196, 10910), (7637, 10280), (8728, 8995)]