20036007940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{257731}}^1$

素因数の和:257789

約数の個数: 72

約数和(自身を含む): 47542275648

約数和(自身を除く): 27506267708

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 169, 230, 260, 299, 338, 460, 598, 676, 845, 1196, 1495, 1690, 2990, 3380, 3887, 5980, 7774, 15548, 19435, 38870, 77740, 257731, 515462, 1030924, 1288655, 2577310, 3350503, 5154620, 5927813, 6701006, 11855626, 13402012, 16752515, 23711252, 29639065, 33505030, 43556539, 59278130, 67010060, 77061569, 87113078, 118556260, 154123138, 174226156, 217782695, 308246276, 385307845, 435565390, 770615690, 871130780, 1001800397, 1541231380, 2003600794, 4007201588, 5009001985, 10018003970, 20036007940]

約数ペア:

[(1, 20036007940), (2, 10018003970), (4, 5009001985), (5, 4007201588), (10, 2003600794), (13, 1541231380), (20, 1001800397), (23, 871130780), (26, 770615690), (46, 435565390), (52, 385307845), (65, 308246276), (92, 217782695), (115, 174226156), (130, 154123138), (169, 118556260), (230, 87113078), (260, 77061569), (299, 67010060), (338, 59278130), (460, 43556539), (598, 33505030), (676, 29639065), (845, 23711252), (1196, 16752515), (1495, 13402012), (1690, 11855626), (2990, 6701006), (3380, 5927813), (3887, 5154620), (5980, 3350503), (7774, 2577310), (15548, 1288655), (19435, 1030924), (38870, 515462), (77740, 257731)]