77703940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{509}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 173502000

約数和(自身を除く): 95798060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 449, 509, 898, 1018, 1796, 2036, 2245, 2545, 4490, 5090, 7633, 8653, 8980, 10180, 15266, 17306, 30532, 34612, 38165, 43265, 76330, 86530, 152660, 173060, 228541, 457082, 914164, 1142705, 2285410, 3885197, 4570820, 7770394, 15540788, 19425985, 38851970, 77703940]

約数ペア:

[(1, 77703940), (2, 38851970), (4, 19425985), (5, 15540788), (10, 7770394), (17, 4570820), (20, 3885197), (34, 2285410), (68, 1142705), (85, 914164), (170, 457082), (340, 228541), (449, 173060), (509, 152660), (898, 86530), (1018, 76330), (1796, 43265), (2036, 38165), (2245, 34612), (2545, 30532), (4490, 17306), (5090, 15266), (7633, 10180), (8653, 8980)]