258536425

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 405616896

約数和(自身を除く): 147080471

約数列:

[1, 5, 7, 17, 25, 35, 43, 47, 85, 119, 175, 215, 235, 301, 329, 425, 595, 731, 799, 1075, 1175, 1505, 1645, 1849, 2021, 2975, 3655, 3995, 5117, 5593, 7525, 8225, 9245, 10105, 12943, 14147, 18275, 19975, 25585, 27965, 31433, 34357, 46225, 50525, 64715, 70735, 86903, 127925, 139825, 157165, 171785, 220031, 240499, 323575, 353675, 434515, 608321, 785825, 858925, 1100155, 1202495, 1477351, 2172575, 3041605, 5500775, 6012475, 7386755, 10341457, 15208025, 36933775, 51707285, 258536425]

約数ペア:

[(1, 258536425), (5, 51707285), (7, 36933775), (17, 15208025), (25, 10341457), (35, 7386755), (43, 6012475), (47, 5500775), (85, 3041605), (119, 2172575), (175, 1477351), (215, 1202495), (235, 1100155), (301, 858925), (329, 785825), (425, 608321), (595, 434515), (731, 353675), (799, 323575), (1075, 240499), (1175, 220031), (1505, 171785), (1645, 157165), (1849, 139825), (2021, 127925), (2975, 86903), (3655, 70735), (3995, 64715), (5117, 50525), (5593, 46225), (7525, 34357), (8225, 31433), (9245, 27965), (10105, 25585), (12943, 19975), (14147, 18275)]