20205413488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{764893}}^1$

素因数の和:765041

約数の個数: 40

約数和(自身を含む): 42491391488

約数和(自身を除く): 22285978000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 1016, 1651, 2032, 3302, 6604, 13208, 26416, 764893, 1529786, 3059572, 6119144, 9943609, 12238288, 19887218, 39774436, 79548872, 97141411, 159097744, 194282822, 388565644, 777131288, 1262838343, 1554262576, 2525676686, 5051353372, 10102706744, 20205413488]

約数ペア:

[(1, 20205413488), (2, 10102706744), (4, 5051353372), (8, 2525676686), (13, 1554262576), (16, 1262838343), (26, 777131288), (52, 388565644), (104, 194282822), (127, 159097744), (208, 97141411), (254, 79548872), (508, 39774436), (1016, 19887218), (1651, 12238288), (2032, 9943609), (3302, 6119144), (6604, 3059572), (13208, 1529786), (26416, 764893)]