131252920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{769}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 314344800

約数和(自身を除く): 183091880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 251, 340, 502, 680, 769, 1004, 1255, 1538, 2008, 2510, 3076, 3845, 4267, 5020, 6152, 7690, 8534, 10040, 13073, 15380, 17068, 21335, 26146, 30760, 34136, 42670, 52292, 65365, 85340, 104584, 130730, 170680, 193019, 261460, 386038, 522920, 772076, 965095, 1544152, 1930190, 3281323, 3860380, 6562646, 7720760, 13125292, 16406615, 26250584, 32813230, 65626460, 131252920]

約数ペア:

[(1, 131252920), (2, 65626460), (4, 32813230), (5, 26250584), (8, 16406615), (10, 13125292), (17, 7720760), (20, 6562646), (34, 3860380), (40, 3281323), (68, 1930190), (85, 1544152), (136, 965095), (170, 772076), (251, 522920), (340, 386038), (502, 261460), (680, 193019), (769, 170680), (1004, 130730), (1255, 104584), (1538, 85340), (2008, 65365), (2510, 52292), (3076, 42670), (3845, 34136), (4267, 30760), (5020, 26146), (6152, 21335), (7690, 17068), (8534, 15380), (10040, 13073)]