61404880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 148521744

約数和(自身を除く): 87116864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 97, 164, 193, 194, 205, 328, 386, 388, 410, 485, 656, 772, 776, 820, 965, 970, 1544, 1552, 1640, 1930, 1940, 3088, 3280, 3860, 3880, 3977, 7720, 7760, 7913, 7954, 15440, 15826, 15908, 18721, 19885, 31652, 31816, 37442, 39565, 39770, 63304, 63632, 74884, 79130, 79540, 93605, 126608, 149768, 158260, 159080, 187210, 299536, 316520, 318160, 374420, 633040, 748840, 767561, 1497680, 1535122, 3070244, 3837805, 6140488, 7675610, 12280976, 15351220, 30702440, 61404880]

約数ペア:

[(1, 61404880), (2, 30702440), (4, 15351220), (5, 12280976), (8, 7675610), (10, 6140488), (16, 3837805), (20, 3070244), (40, 1535122), (41, 1497680), (80, 767561), (82, 748840), (97, 633040), (164, 374420), (193, 318160), (194, 316520), (205, 299536), (328, 187210), (386, 159080), (388, 158260), (410, 149768), (485, 126608), (656, 93605), (772, 79540), (776, 79130), (820, 74884), (965, 63632), (970, 63304), (1544, 39770), (1552, 39565), (1640, 37442), (1930, 31816), (1940, 31652), (3088, 19885), (3280, 18721), (3860, 15908), (3880, 15826), (3977, 15440), (7720, 7954), (7760, 7913)]