20380528

素因数分解:

$2^4\times 7^1\times {\mathrm{283}}^1\times {\mathrm{643}}^1$

素因数の和:941

約数の個数: 40

約数和(自身を含む): 45358208

約数和(自身を除く): 24977680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 283, 566, 643, 1132, 1286, 1981, 2264, 2572, 3962, 4501, 4528, 5144, 7924, 9002, 10288, 15848, 18004, 31696, 36008, 72016, 181969, 363938, 727876, 1273783, 1455752, 2547566, 2911504, 5095132, 10190264, 20380528]

約数ペア:

[(1, 20380528), (2, 10190264), (4, 5095132), (7, 2911504), (8, 2547566), (14, 1455752), (16, 1273783), (28, 727876), (56, 363938), (112, 181969), (283, 72016), (566, 36008), (643, 31696), (1132, 18004), (1286, 15848), (1981, 10288), (2264, 9002), (2572, 7924), (3962, 5144), (4501, 4528)]