257251010925

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{9967}}^1$

素因数の和:10219

約数の個数: 96

約数和(自身を含む): 446395428864

約数和(自身を除く): 189144417939

約数列:

[1, 3, 5, 15, 25, 37, 71, 75, 111, 131, 185, 213, 355, 393, 555, 655, 925, 1065, 1775, 1965, 2627, 2775, 3275, 4847, 5325, 7881, 9301, 9825, 9967, 13135, 14541, 24235, 27903, 29901, 39405, 46505, 49835, 65675, 72705, 121175, 139515, 149505, 197025, 232525, 249175, 344137, 363525, 368779, 697575, 707657, 747525, 1032411, 1106337, 1305677, 1720685, 1843895, 2122971, 3538285, 3917031, 5162055, 5531685, 6528385, 8603425, 9219475, 10614855, 17691425, 19585155, 25810275, 26183309, 27658425, 32641925, 48310049, 53074275, 78549927, 92703067, 97925775, 130916545, 144930147, 241550245, 278109201, 392749635, 463515335, 654582725, 724650735, 1207751225, 1390546005, 1963748175, 2317576675, 3430013479, 3623253675, 6952730025, 10290040437, 17150067395, 51450202185, 85750336975, 257251010925]

約数ペア:

[(1, 257251010925), (3, 85750336975), (5, 51450202185), (15, 17150067395), (25, 10290040437), (37, 6952730025), (71, 3623253675), (75, 3430013479), (111, 2317576675), (131, 1963748175), (185, 1390546005), (213, 1207751225), (355, 724650735), (393, 654582725), (555, 463515335), (655, 392749635), (925, 278109201), (1065, 241550245), (1775, 144930147), (1965, 130916545), (2627, 97925775), (2775, 92703067), (3275, 78549927), (4847, 53074275), (5325, 48310049), (7881, 32641925), (9301, 27658425), (9825, 26183309), (9967, 25810275), (13135, 19585155), (14541, 17691425), (24235, 10614855), (27903, 9219475), (29901, 8603425), (39405, 6528385), (46505, 5531685), (49835, 5162055), (65675, 3917031), (72705, 3538285), (121175, 2122971), (139515, 1843895), (149505, 1720685), (197025, 1305677), (232525, 1106337), (249175, 1032411), (344137, 747525), (363525, 707657), (368779, 697575)]