31491824

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 76995072

約数和(自身を除く): 45503248

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 172, 182, 208, 301, 344, 364, 503, 559, 602, 688, 728, 1006, 1118, 1204, 1456, 2012, 2236, 2408, 3521, 3913, 4024, 4472, 4816, 6539, 7042, 7826, 8048, 8944, 13078, 14084, 15652, 21629, 26156, 28168, 31304, 43258, 45773, 52312, 56336, 62608, 86516, 91546, 104624, 151403, 173032, 183092, 281177, 302806, 346064, 366184, 562354, 605612, 732368, 1124708, 1211224, 1968239, 2249416, 2422448, 3936478, 4498832, 7872956, 15745912, 31491824]

約数ペア:

[(1, 31491824), (2, 15745912), (4, 7872956), (7, 4498832), (8, 3936478), (13, 2422448), (14, 2249416), (16, 1968239), (26, 1211224), (28, 1124708), (43, 732368), (52, 605612), (56, 562354), (86, 366184), (91, 346064), (104, 302806), (112, 281177), (172, 183092), (182, 173032), (208, 151403), (301, 104624), (344, 91546), (364, 86516), (503, 62608), (559, 56336), (602, 52312), (688, 45773), (728, 43258), (1006, 31304), (1118, 28168), (1204, 26156), (1456, 21629), (2012, 15652), (2236, 14084), (2408, 13078), (3521, 8944), (3913, 8048), (4024, 7826), (4472, 7042), (4816, 6539)]