28405538

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 53592192

約数和(自身を除く): 25186654

約数列:

[1, 2, 7, 14, 17, 34, 41, 71, 82, 119, 142, 238, 287, 497, 574, 697, 994, 1207, 1394, 1681, 2414, 2911, 3362, 4879, 5822, 8449, 9758, 11767, 16898, 20377, 23534, 28577, 40754, 49487, 57154, 98974, 119351, 200039, 238702, 346409, 400078, 692818, 835457, 1670914, 2028967, 4057934, 14202769, 28405538]

約数ペア:

[(1, 28405538), (2, 14202769), (7, 4057934), (14, 2028967), (17, 1670914), (34, 835457), (41, 692818), (71, 400078), (82, 346409), (119, 238702), (142, 200039), (238, 119351), (287, 98974), (497, 57154), (574, 49487), (697, 40754), (994, 28577), (1207, 23534), (1394, 20377), (1681, 16898), (2414, 11767), (2911, 9758), (3362, 8449), (4879, 5822)]