78229291

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 98537472

約数和(自身を除く): 20308181

約数列:

[1, 7, 17, 47, 71, 119, 197, 329, 497, 799, 1207, 1379, 3337, 3349, 5593, 8449, 9259, 13987, 23359, 23443, 56729, 64813, 97909, 157403, 237779, 397103, 657389, 1101821, 1664453, 4601723, 11175613, 78229291]

約数ペア:

[(1, 78229291), (7, 11175613), (17, 4601723), (47, 1664453), (71, 1101821), (119, 657389), (197, 397103), (329, 237779), (497, 157403), (799, 97909), (1207, 64813), (1379, 56729), (3337, 23443), (3349, 23359), (5593, 13987), (8449, 9259)]