19998144

素因数分解:

$2^6\times 3^3\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 112

約数和(自身を含む): 59984640

約数和(自身を除く): 39986496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 71, 72, 96, 108, 142, 144, 163, 192, 213, 216, 284, 288, 326, 426, 432, 489, 568, 576, 639, 652, 852, 864, 978, 1136, 1278, 1304, 1467, 1704, 1728, 1917, 1956, 2272, 2556, 2608, 2934, 3408, 3834, 3912, 4401, 4544, 5112, 5216, 5868, 6816, 7668, 7824, 8802, 10224, 10432, 11573, 11736, 13632, 15336, 15648, 17604, 20448, 23146, 23472, 30672, 31296, 34719, 35208, 40896, 46292, 46944, 61344, 69438, 70416, 92584, 93888, 104157, 122688, 138876, 140832, 185168, 208314, 277752, 281664, 312471, 370336, 416628, 555504, 624942, 740672, 833256, 1111008, 1249884, 1666512, 2222016, 2499768, 3333024, 4999536, 6666048, 9999072, 19998144]

約数ペア:

[(1, 19998144), (2, 9999072), (3, 6666048), (4, 4999536), (6, 3333024), (8, 2499768), (9, 2222016), (12, 1666512), (16, 1249884), (18, 1111008), (24, 833256), (27, 740672), (32, 624942), (36, 555504), (48, 416628), (54, 370336), (64, 312471), (71, 281664), (72, 277752), (96, 208314), (108, 185168), (142, 140832), (144, 138876), (163, 122688), (192, 104157), (213, 93888), (216, 92584), (284, 70416), (288, 69438), (326, 61344), (426, 46944), (432, 46292), (489, 40896), (568, 35208), (576, 34719), (639, 31296), (652, 30672), (852, 23472), (864, 23146), (978, 20448), (1136, 17604), (1278, 15648), (1304, 15336), (1467, 13632), (1704, 11736), (1728, 11573), (1917, 10432), (1956, 10224), (2272, 8802), (2556, 7824), (2608, 7668), (2934, 6816), (3408, 5868), (3834, 5216), (3912, 5112), (4401, 4544)]