19915743568

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{27361}}^1$

素因数の和:27540

約数の個数: 80

約数和(自身を含む): 45220411264

約数和(自身を除く): 25304667696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 97, 112, 134, 194, 268, 388, 469, 536, 679, 776, 938, 1072, 1358, 1552, 1876, 2716, 3752, 5432, 6499, 7504, 10864, 12998, 25996, 27361, 45493, 51992, 54722, 90986, 103984, 109444, 181972, 191527, 218888, 363944, 383054, 437776, 727888, 766108, 1532216, 1833187, 2654017, 3064432, 3666374, 5308034, 7332748, 10616068, 12832309, 14665496, 18578119, 21232136, 25664618, 29330992, 37156238, 42464272, 51329236, 74312476, 102658472, 148624952, 177819139, 205316944, 297249904, 355638278, 711276556, 1244733973, 1422553112, 2489467946, 2845106224, 4978935892, 9957871784, 19915743568]

約数ペア:

[(1, 19915743568), (2, 9957871784), (4, 4978935892), (7, 2845106224), (8, 2489467946), (14, 1422553112), (16, 1244733973), (28, 711276556), (56, 355638278), (67, 297249904), (97, 205316944), (112, 177819139), (134, 148624952), (194, 102658472), (268, 74312476), (388, 51329236), (469, 42464272), (536, 37156238), (679, 29330992), (776, 25664618), (938, 21232136), (1072, 18578119), (1358, 14665496), (1552, 12832309), (1876, 10616068), (2716, 7332748), (3752, 5308034), (5432, 3666374), (6499, 3064432), (7504, 2654017), (10864, 1833187), (12998, 1532216), (25996, 766108), (27361, 727888), (45493, 437776), (51992, 383054), (54722, 363944), (90986, 218888), (103984, 191527), (109444, 181972)]