20125081600

素因数分解:

$2^{13}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7559}}^1$

素因数の和:7608

約数の個数: 168

約数和(自身を含む): 53753278320

約数和(自身を除く): 33628196720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 650, 800, 832, 1024, 1040, 1280, 1300, 1600, 1664, 2048, 2080, 2560, 2600, 3200, 3328, 4096, 4160, 5120, 5200, 6400, 6656, 7559, 8192, 8320, 10240, 10400, 12800, 13312, 15118, 16640, 20480, 20800, 25600, 26624, 30236, 33280, 37795, 40960, 41600, 51200, 53248, 60472, 66560, 75590, 83200, 98267, 102400, 106496, 120944, 133120, 151180, 166400, 188975, 196534, 204800, 241888, 266240, 302360, 332800, 377950, 393068, 483776, 491335, 532480, 604720, 665600, 755900, 786136, 967552, 982670, 1209440, 1331200, 1511800, 1572272, 1935104, 1965340, 2418880, 2456675, 2662400, 3023600, 3144544, 3870208, 3930680, 4837760, 4913350, 6047200, 6289088, 7740416, 7861360, 9675520, 9826700, 12094400, 12578176, 15480832, 15722720, 19351040, 19653400, 24188800, 25156352, 30961664, 31445440, 38702080, 39306800, 48377600, 50312704, 61923328, 62890880, 77404160, 78613600, 96755200, 100625408, 125781760, 154808320, 157227200, 193510400, 201250816, 251563520, 309616640, 314454400, 387020800, 402501632, 503127040, 628908800, 774041600, 805003264, 1006254080, 1257817600, 1548083200, 2012508160, 2515635200, 4025016320, 5031270400, 10062540800, 20125081600]

約数ペア:

[(1, 20125081600), (2, 10062540800), (4, 5031270400), (5, 4025016320), (8, 2515635200), (10, 2012508160), (13, 1548083200), (16, 1257817600), (20, 1006254080), (25, 805003264), (26, 774041600), (32, 628908800), (40, 503127040), (50, 402501632), (52, 387020800), (64, 314454400), (65, 309616640), (80, 251563520), (100, 201250816), (104, 193510400), (128, 157227200), (130, 154808320), (160, 125781760), (200, 100625408), (208, 96755200), (256, 78613600), (260, 77404160), (320, 62890880), (325, 61923328), (400, 50312704), (416, 48377600), (512, 39306800), (520, 38702080), (640, 31445440), (650, 30961664), (800, 25156352), (832, 24188800), (1024, 19653400), (1040, 19351040), (1280, 15722720), (1300, 15480832), (1600, 12578176), (1664, 12094400), (2048, 9826700), (2080, 9675520), (2560, 7861360), (2600, 7740416), (3200, 6289088), (3328, 6047200), (4096, 4913350), (4160, 4837760), (5120, 3930680), (5200, 3870208), (6400, 3144544), (6656, 3023600), (7559, 2662400), (8192, 2456675), (8320, 2418880), (10240, 1965340), (10400, 1935104), (12800, 1572272), (13312, 1511800), (15118, 1331200), (16640, 1209440), (20480, 982670), (20800, 967552), (25600, 786136), (26624, 755900), (30236, 665600), (33280, 604720), (37795, 532480), (40960, 491335), (41600, 483776), (51200, 393068), (53248, 377950), (60472, 332800), (66560, 302360), (75590, 266240), (83200, 241888), (98267, 204800), (102400, 196534), (106496, 188975), (120944, 166400), (133120, 151180)]