1990222016

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:382

約数の個数: 112

約数和(自身を含む): 4239889920

約数和(自身を除く): 2249667904

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 71, 92, 137, 139, 142, 184, 274, 278, 284, 368, 548, 556, 568, 736, 1096, 1112, 1136, 1472, 1633, 2192, 2224, 2272, 3151, 3197, 3266, 4384, 4448, 4544, 6302, 6394, 6532, 8768, 8896, 9727, 9869, 12604, 12788, 13064, 19043, 19454, 19738, 25208, 25576, 26128, 38086, 38908, 39476, 50416, 51152, 52256, 76172, 77816, 78952, 100832, 102304, 104512, 152344, 155632, 157904, 201664, 204608, 223721, 226987, 304688, 311264, 315808, 437989, 447442, 453974, 609376, 622528, 631616, 875978, 894884, 907948, 1218752, 1352053, 1751956, 1789768, 1815896, 2704106, 3503912, 3579536, 3631792, 5408212, 7007824, 7159072, 7263584, 10816424, 14015648, 14318144, 14527168, 21632848, 28031296, 31097219, 43265696, 62194438, 86531392, 124388876, 248777752, 497555504, 995111008, 1990222016]

約数ペア:

[(1, 1990222016), (2, 995111008), (4, 497555504), (8, 248777752), (16, 124388876), (23, 86531392), (32, 62194438), (46, 43265696), (64, 31097219), (71, 28031296), (92, 21632848), (137, 14527168), (139, 14318144), (142, 14015648), (184, 10816424), (274, 7263584), (278, 7159072), (284, 7007824), (368, 5408212), (548, 3631792), (556, 3579536), (568, 3503912), (736, 2704106), (1096, 1815896), (1112, 1789768), (1136, 1751956), (1472, 1352053), (1633, 1218752), (2192, 907948), (2224, 894884), (2272, 875978), (3151, 631616), (3197, 622528), (3266, 609376), (4384, 453974), (4448, 447442), (4544, 437989), (6302, 315808), (6394, 311264), (6532, 304688), (8768, 226987), (8896, 223721), (9727, 204608), (9869, 201664), (12604, 157904), (12788, 155632), (13064, 152344), (19043, 104512), (19454, 102304), (19738, 100832), (25208, 78952), (25576, 77816), (26128, 76172), (38086, 52256), (38908, 51152), (39476, 50416)]