251431570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{28867}}^1$

素因数の和:28954

約数の個数: 32

約数和(自身を含む): 494682048

約数和(自身を除く): 243250478

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 4355, 8710, 28867, 57734, 144335, 288670, 375271, 750542, 1876355, 1934089, 3752710, 3868178, 9670445, 19340890, 25143157, 50286314, 125715785, 251431570]

約数ペア:

[(1, 251431570), (2, 125715785), (5, 50286314), (10, 25143157), (13, 19340890), (26, 9670445), (65, 3868178), (67, 3752710), (130, 1934089), (134, 1876355), (335, 750542), (670, 375271), (871, 288670), (1742, 144335), (4355, 57734), (8710, 28867)]