20375848516

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{971}}^1$

素因数の和:1193

約数の個数: 72

約数和(自身を含む): 37943785152

約数和(自身を除く): 17567936636

約数列:

[1, 2, 4, 31, 53, 62, 103, 106, 124, 206, 212, 412, 961, 971, 1643, 1922, 1942, 3193, 3286, 3844, 3884, 5459, 6386, 6572, 10918, 12772, 21836, 30101, 50933, 51463, 60202, 98983, 100013, 101866, 102926, 120404, 169229, 197966, 200026, 203732, 205852, 338458, 395932, 400052, 676916, 933131, 1595353, 1866262, 3100403, 3190706, 3732524, 5246099, 5300689, 6200806, 6381412, 10492198, 10601378, 12401612, 20984396, 21202756, 49455943, 96112493, 98911886, 164321359, 192224986, 197823772, 328642718, 384449972, 657285436, 5093962129, 10187924258, 20375848516]

約数ペア:

[(1, 20375848516), (2, 10187924258), (4, 5093962129), (31, 657285436), (53, 384449972), (62, 328642718), (103, 197823772), (106, 192224986), (124, 164321359), (206, 98911886), (212, 96112493), (412, 49455943), (961, 21202756), (971, 20984396), (1643, 12401612), (1922, 10601378), (1942, 10492198), (3193, 6381412), (3286, 6200806), (3844, 5300689), (3884, 5246099), (5459, 3732524), (6386, 3190706), (6572, 3100403), (10918, 1866262), (12772, 1595353), (21836, 933131), (30101, 676916), (50933, 400052), (51463, 395932), (60202, 338458), (98983, 205852), (100013, 203732), (101866, 200026), (102926, 197966), (120404, 169229)]