256109724

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 730562560

約数和(自身を除く): 474452836

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 127, 139, 156, 186, 234, 254, 278, 279, 372, 381, 403, 417, 468, 508, 556, 558, 762, 806, 834, 1116, 1143, 1209, 1251, 1524, 1612, 1651, 1668, 1807, 2286, 2418, 2502, 3302, 3614, 3627, 3937, 4309, 4572, 4836, 4953, 5004, 5421, 6604, 7228, 7254, 7874, 8618, 9906, 10842, 11811, 12927, 14508, 14859, 15748, 16263, 17236, 17653, 19812, 21684, 23622, 25854, 29718, 32526, 35306, 35433, 38781, 47244, 51181, 51708, 52959, 56017, 59436, 65052, 70612, 70866, 77562, 102362, 105918, 112034, 141732, 153543, 155124, 158877, 168051, 204724, 211836, 224068, 229489, 307086, 317754, 336102, 458978, 460629, 504153, 547243, 614172, 635508, 672204, 688467, 917956, 921258, 1008306, 1094486, 1376934, 1641729, 1842516, 2016612, 2065401, 2188972, 2753868, 3283458, 4130802, 4925187, 6566916, 7114159, 8261604, 9850374, 14228318, 19700748, 21342477, 28456636, 42684954, 64027431, 85369908, 128054862, 256109724]

約数ペア:

[(1, 256109724), (2, 128054862), (3, 85369908), (4, 64027431), (6, 42684954), (9, 28456636), (12, 21342477), (13, 19700748), (18, 14228318), (26, 9850374), (31, 8261604), (36, 7114159), (39, 6566916), (52, 4925187), (62, 4130802), (78, 3283458), (93, 2753868), (117, 2188972), (124, 2065401), (127, 2016612), (139, 1842516), (156, 1641729), (186, 1376934), (234, 1094486), (254, 1008306), (278, 921258), (279, 917956), (372, 688467), (381, 672204), (403, 635508), (417, 614172), (468, 547243), (508, 504153), (556, 460629), (558, 458978), (762, 336102), (806, 317754), (834, 307086), (1116, 229489), (1143, 224068), (1209, 211836), (1251, 204724), (1524, 168051), (1612, 158877), (1651, 155124), (1668, 153543), (1807, 141732), (2286, 112034), (2418, 105918), (2502, 102362), (3302, 77562), (3614, 70866), (3627, 70612), (3937, 65052), (4309, 59436), (4572, 56017), (4836, 52959), (4953, 51708), (5004, 51181), (5421, 47244), (6604, 38781), (7228, 35433), (7254, 35306), (7874, 32526), (8618, 29718), (9906, 25854), (10842, 23622), (11811, 21684), (12927, 19812), (14508, 17653), (14859, 17236), (15748, 16263)]