20031944

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 38820600

約数和(自身を除く): 18788656

約数列:

[1, 2, 4, 8, 41, 82, 157, 164, 314, 328, 389, 628, 778, 1256, 1556, 3112, 6437, 12874, 15949, 25748, 31898, 51496, 61073, 63796, 122146, 127592, 244292, 488584, 2503993, 5007986, 10015972, 20031944]

約数ペア:

[(1, 20031944), (2, 10015972), (4, 5007986), (8, 2503993), (41, 488584), (82, 244292), (157, 127592), (164, 122146), (314, 63796), (328, 61073), (389, 51496), (628, 31898), (778, 25748), (1256, 15949), (1556, 12874), (3112, 6437)]