257797575

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 108

約数和(自身を含む): 546709800

約数和(自身を除く): 288912225

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 67, 75, 105, 147, 175, 201, 225, 245, 315, 335, 349, 441, 469, 525, 603, 735, 1005, 1047, 1225, 1407, 1575, 1675, 1745, 2205, 2345, 2443, 3015, 3141, 3283, 3675, 4221, 5025, 5235, 7035, 7329, 8725, 9849, 11025, 11725, 12215, 15075, 15705, 16415, 17101, 21105, 21987, 23383, 26175, 29547, 35175, 36645, 49245, 51303, 61075, 70149, 78525, 82075, 85505, 105525, 109935, 116915, 147735, 153909, 163681, 183225, 210447, 246225, 256515, 350745, 427525, 491043, 549675, 584575, 738675, 769545, 818405, 1052235, 1145767, 1282575, 1473129, 1753725, 2455215, 3437301, 3847725, 4092025, 5261175, 5728835, 7365645, 10311903, 12276075, 17186505, 28644175, 36828225, 51559515, 85932525, 257797575]

約数ペア:

[(1, 257797575), (3, 85932525), (5, 51559515), (7, 36828225), (9, 28644175), (15, 17186505), (21, 12276075), (25, 10311903), (35, 7365645), (45, 5728835), (49, 5261175), (63, 4092025), (67, 3847725), (75, 3437301), (105, 2455215), (147, 1753725), (175, 1473129), (201, 1282575), (225, 1145767), (245, 1052235), (315, 818405), (335, 769545), (349, 738675), (441, 584575), (469, 549675), (525, 491043), (603, 427525), (735, 350745), (1005, 256515), (1047, 246225), (1225, 210447), (1407, 183225), (1575, 163681), (1675, 153909), (1745, 147735), (2205, 116915), (2345, 109935), (2443, 105525), (3015, 85505), (3141, 82075), (3283, 78525), (3675, 70149), (4221, 61075), (5025, 51303), (5235, 49245), (7035, 36645), (7329, 35175), (8725, 29547), (9849, 26175), (11025, 23383), (11725, 21987), (12215, 21105), (15075, 17101), (15705, 16415)]