20117684992

素因数分解:

$2^8\times {\mathrm{37}}^2\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:646

約数の個数: 108

約数和(自身を含む): 41671906920

約数和(自身を除く): 21554221928

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 137, 148, 256, 274, 296, 419, 548, 592, 838, 1096, 1184, 1369, 1676, 2192, 2368, 2738, 3352, 4384, 4736, 5069, 5476, 6704, 8768, 9472, 10138, 10952, 13408, 15503, 17536, 20276, 21904, 26816, 31006, 35072, 40552, 43808, 53632, 57403, 62012, 81104, 87616, 107264, 114806, 124024, 162208, 175232, 187553, 229612, 248048, 324416, 350464, 375106, 459224, 496096, 573611, 648832, 750212, 918448, 992192, 1147222, 1297664, 1500424, 1836896, 1984384, 2123911, 2294444, 3000848, 3673792, 3968768, 4247822, 4588888, 6001696, 7347584, 8495644, 9177776, 12003392, 14695168, 16991288, 18355552, 24006784, 33982576, 36711104, 48013568, 67965152, 73422208, 78584707, 135930304, 146844416, 157169414, 271860608, 314338828, 543721216, 628677656, 1257355312, 2514710624, 5029421248, 10058842496, 20117684992]

約数ペア:

[(1, 20117684992), (2, 10058842496), (4, 5029421248), (8, 2514710624), (16, 1257355312), (32, 628677656), (37, 543721216), (64, 314338828), (74, 271860608), (128, 157169414), (137, 146844416), (148, 135930304), (256, 78584707), (274, 73422208), (296, 67965152), (419, 48013568), (548, 36711104), (592, 33982576), (838, 24006784), (1096, 18355552), (1184, 16991288), (1369, 14695168), (1676, 12003392), (2192, 9177776), (2368, 8495644), (2738, 7347584), (3352, 6001696), (4384, 4588888), (4736, 4247822), (5069, 3968768), (5476, 3673792), (6704, 3000848), (8768, 2294444), (9472, 2123911), (10138, 1984384), (10952, 1836896), (13408, 1500424), (15503, 1297664), (17536, 1147222), (20276, 992192), (21904, 918448), (26816, 750212), (31006, 648832), (35072, 573611), (40552, 496096), (43808, 459224), (53632, 375106), (57403, 350464), (62012, 324416), (81104, 248048), (87616, 229612), (107264, 187553), (114806, 175232), (124024, 162208)]