20388975776

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{51001}}^1$

素因数の和:51086

約数の個数: 72

約数和(自身を含む): 44668877652

約数和(自身を除く): 24279901876

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 961, 992, 1612, 1922, 3224, 3844, 6448, 7688, 12493, 12896, 15376, 24986, 30752, 49972, 51001, 99944, 102002, 199888, 204004, 399776, 408008, 663013, 816016, 1326026, 1581031, 1632032, 2652052, 3162062, 5304104, 6324124, 10608208, 12648248, 20553403, 21216416, 25296496, 41106806, 49011961, 50592992, 82213612, 98023922, 164427224, 196047844, 328854448, 392095688, 637155493, 657708896, 784191376, 1274310986, 1568382752, 2548621972, 5097243944, 10194487888, 20388975776]

約数ペア:

[(1, 20388975776), (2, 10194487888), (4, 5097243944), (8, 2548621972), (13, 1568382752), (16, 1274310986), (26, 784191376), (31, 657708896), (32, 637155493), (52, 392095688), (62, 328854448), (104, 196047844), (124, 164427224), (208, 98023922), (248, 82213612), (403, 50592992), (416, 49011961), (496, 41106806), (806, 25296496), (961, 21216416), (992, 20553403), (1612, 12648248), (1922, 10608208), (3224, 6324124), (3844, 5304104), (6448, 3162062), (7688, 2652052), (12493, 1632032), (12896, 1581031), (15376, 1326026), (24986, 816016), (30752, 663013), (49972, 408008), (51001, 399776), (99944, 204004), (102002, 199888)]