20179906576

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{533747}}^1$

素因数の和:533911

約数の個数: 40

約数和(自身を含む): 41696393760

約数和(自身を除く): 21516487184

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 139, 272, 278, 556, 1112, 2224, 2363, 4726, 9452, 18904, 37808, 533747, 1067494, 2134988, 4269976, 8539952, 9073699, 18147398, 36294796, 72589592, 74190833, 145179184, 148381666, 296763332, 593526664, 1187053328, 1261244161, 2522488322, 5044976644, 10089953288, 20179906576]

約数ペア:

[(1, 20179906576), (2, 10089953288), (4, 5044976644), (8, 2522488322), (16, 1261244161), (17, 1187053328), (34, 593526664), (68, 296763332), (136, 148381666), (139, 145179184), (272, 74190833), (278, 72589592), (556, 36294796), (1112, 18147398), (2224, 9073699), (2363, 8539952), (4726, 4269976), (9452, 2134988), (18904, 1067494), (37808, 533747)]