257225616

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 739327680

約数和(自身を除く): 482102064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 139, 142, 144, 181, 213, 278, 284, 362, 417, 426, 543, 556, 568, 639, 724, 834, 852, 1086, 1112, 1136, 1251, 1278, 1448, 1629, 1668, 1704, 2172, 2224, 2502, 2556, 2896, 3258, 3336, 3408, 4344, 5004, 5112, 6516, 6672, 8688, 9869, 10008, 10224, 12851, 13032, 19738, 20016, 25159, 25702, 26064, 29607, 38553, 39476, 50318, 51404, 59214, 75477, 77106, 78952, 88821, 100636, 102808, 115659, 118428, 150954, 154212, 157904, 177642, 201272, 205616, 226431, 231318, 236856, 301908, 308424, 355284, 402544, 452862, 462636, 473712, 603816, 616848, 710568, 905724, 925272, 1207632, 1421136, 1786289, 1811448, 1850544, 3572578, 3622896, 5358867, 7145156, 10717734, 14290312, 16076601, 21435468, 28580624, 32153202, 42870936, 64306404, 85741872, 128612808, 257225616]

約数ペア:

[(1, 257225616), (2, 128612808), (3, 85741872), (4, 64306404), (6, 42870936), (8, 32153202), (9, 28580624), (12, 21435468), (16, 16076601), (18, 14290312), (24, 10717734), (36, 7145156), (48, 5358867), (71, 3622896), (72, 3572578), (139, 1850544), (142, 1811448), (144, 1786289), (181, 1421136), (213, 1207632), (278, 925272), (284, 905724), (362, 710568), (417, 616848), (426, 603816), (543, 473712), (556, 462636), (568, 452862), (639, 402544), (724, 355284), (834, 308424), (852, 301908), (1086, 236856), (1112, 231318), (1136, 226431), (1251, 205616), (1278, 201272), (1448, 177642), (1629, 157904), (1668, 154212), (1704, 150954), (2172, 118428), (2224, 115659), (2502, 102808), (2556, 100636), (2896, 88821), (3258, 78952), (3336, 77106), (3408, 75477), (4344, 59214), (5004, 51404), (5112, 50318), (6516, 39476), (6672, 38553), (8688, 29607), (9869, 26064), (10008, 25702), (10224, 25159), (12851, 20016), (13032, 19738)]