25318475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 14678965

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 325, 359, 403, 455, 775, 1085, 1795, 2015, 2275, 2513, 2821, 4667, 5425, 8975, 10075, 11129, 12565, 14105, 23335, 32669, 55645, 62825, 70525, 77903, 116675, 144677, 163345, 278225, 389515, 723385, 816725, 1012739, 1947575, 3616925, 5063695, 25318475]

約数ペア:

[(1, 25318475), (5, 5063695), (7, 3616925), (13, 1947575), (25, 1012739), (31, 816725), (35, 723385), (65, 389515), (91, 278225), (155, 163345), (175, 144677), (217, 116675), (325, 77903), (359, 70525), (403, 62825), (455, 55645), (775, 32669), (1085, 23335), (1795, 14105), (2015, 12565), (2275, 11129), (2513, 10075), (2821, 8975), (4667, 5425)]