20480459780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{35437}}^1$

素因数の和:35565

約数の個数: 96

約数和(自身を含む): 48867017472

約数和(自身を除く): 28386557692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 71, 74, 110, 142, 148, 185, 220, 284, 355, 370, 407, 710, 740, 781, 814, 1420, 1562, 1628, 2035, 2627, 3124, 3905, 4070, 5254, 7810, 8140, 10508, 13135, 15620, 26270, 28897, 35437, 52540, 57794, 70874, 115588, 141748, 144485, 177185, 288970, 354370, 389807, 577940, 708740, 779614, 1311169, 1559228, 1949035, 2516027, 2622338, 3898070, 5032054, 5244676, 6555845, 7796140, 10064108, 12580135, 13111690, 14422859, 25160270, 26223380, 27676297, 28845718, 50320540, 55352594, 57691436, 72114295, 93092999, 110705188, 138381485, 144228590, 186185998, 276762970, 288457180, 372371996, 465464995, 553525940, 930929990, 1024022989, 1861859980, 2048045978, 4096091956, 5120114945, 10240229890, 20480459780]

約数ペア:

[(1, 20480459780), (2, 10240229890), (4, 5120114945), (5, 4096091956), (10, 2048045978), (11, 1861859980), (20, 1024022989), (22, 930929990), (37, 553525940), (44, 465464995), (55, 372371996), (71, 288457180), (74, 276762970), (110, 186185998), (142, 144228590), (148, 138381485), (185, 110705188), (220, 93092999), (284, 72114295), (355, 57691436), (370, 55352594), (407, 50320540), (710, 28845718), (740, 27676297), (781, 26223380), (814, 25160270), (1420, 14422859), (1562, 13111690), (1628, 12580135), (2035, 10064108), (2627, 7796140), (3124, 6555845), (3905, 5244676), (4070, 5032054), (5254, 3898070), (7810, 2622338), (8140, 2516027), (10508, 1949035), (13135, 1559228), (15620, 1311169), (26270, 779614), (28897, 708740), (35437, 577940), (52540, 389807), (57794, 354370), (70874, 288970), (115588, 177185), (141748, 144485)]