81557126

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 158257152

約数和(自身を除く): 76700026

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 47, 94, 119, 161, 238, 317, 322, 329, 391, 634, 658, 782, 799, 1081, 1598, 2162, 2219, 2737, 4438, 5389, 5474, 5593, 7291, 7567, 10778, 11186, 14582, 14899, 15134, 18377, 29798, 36754, 37723, 51037, 75446, 102074, 104293, 123947, 128639, 208586, 247894, 253283, 257278, 342677, 506566, 685354, 867629, 1735258, 1772981, 2398739, 3545962, 4797478, 5825509, 11651018, 40778563, 81557126]

約数ペア:

[(1, 81557126), (2, 40778563), (7, 11651018), (14, 5825509), (17, 4797478), (23, 3545962), (34, 2398739), (46, 1772981), (47, 1735258), (94, 867629), (119, 685354), (161, 506566), (238, 342677), (317, 257278), (322, 253283), (329, 247894), (391, 208586), (634, 128639), (658, 123947), (782, 104293), (799, 102074), (1081, 75446), (1598, 51037), (2162, 37723), (2219, 36754), (2737, 29798), (4438, 18377), (5389, 15134), (5474, 14899), (5593, 14582), (7291, 11186), (7567, 10778)]