258501425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 410348736

約数和(自身を除く): 151847311

約数列:

[1, 5, 7, 13, 25, 35, 37, 65, 83, 91, 175, 185, 259, 325, 415, 455, 481, 581, 925, 1079, 1295, 1369, 2075, 2275, 2405, 2905, 3071, 3367, 5395, 6475, 6845, 7553, 9583, 12025, 14525, 15355, 16835, 17797, 21497, 26975, 34225, 37765, 39923, 47915, 76775, 84175, 88985, 107485, 113627, 124579, 188825, 199615, 239575, 279461, 444925, 537425, 568135, 622895, 795389, 998075, 1397305, 1477151, 2840675, 3114475, 3976945, 6986525, 7385755, 10340057, 19884725, 36928775, 51700285, 258501425]

約数ペア:

[(1, 258501425), (5, 51700285), (7, 36928775), (13, 19884725), (25, 10340057), (35, 7385755), (37, 6986525), (65, 3976945), (83, 3114475), (91, 2840675), (175, 1477151), (185, 1397305), (259, 998075), (325, 795389), (415, 622895), (455, 568135), (481, 537425), (581, 444925), (925, 279461), (1079, 239575), (1295, 199615), (1369, 188825), (2075, 124579), (2275, 113627), (2405, 107485), (2905, 88985), (3071, 84175), (3367, 76775), (5395, 47915), (6475, 39923), (6845, 37765), (7553, 34225), (9583, 26975), (12025, 21497), (14525, 17797), (15355, 16835)]