81743680

素因数分解:

$2^6\times 5^1\times {\mathrm{467}}^1\times {\mathrm{547}}^1$

素因数の和:1031

約数の個数: 56

約数和(自身を含む): 195425568

約数和(自身を除く): 113681888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 467, 547, 934, 1094, 1868, 2188, 2335, 2735, 3736, 4376, 4670, 5470, 7472, 8752, 9340, 10940, 14944, 17504, 18680, 21880, 29888, 35008, 37360, 43760, 74720, 87520, 149440, 175040, 255449, 510898, 1021796, 1277245, 2043592, 2554490, 4087184, 5108980, 8174368, 10217960, 16348736, 20435920, 40871840, 81743680]

約数ペア:

[(1, 81743680), (2, 40871840), (4, 20435920), (5, 16348736), (8, 10217960), (10, 8174368), (16, 5108980), (20, 4087184), (32, 2554490), (40, 2043592), (64, 1277245), (80, 1021796), (160, 510898), (320, 255449), (467, 175040), (547, 149440), (934, 87520), (1094, 74720), (1868, 43760), (2188, 37360), (2335, 35008), (2735, 29888), (3736, 21880), (4376, 18680), (4670, 17504), (5470, 14944), (7472, 10940), (8752, 9340)]