38787920

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1559}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 90529920

約数和(自身を除く): 51742000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 1559, 2488, 3110, 3118, 4976, 6220, 6236, 7795, 12440, 12472, 15590, 24880, 24944, 31180, 62360, 124720, 484849, 969698, 1939396, 2424245, 3878792, 4848490, 7757584, 9696980, 19393960, 38787920]

約数ペア:

[(1, 38787920), (2, 19393960), (4, 9696980), (5, 7757584), (8, 4848490), (10, 3878792), (16, 2424245), (20, 1939396), (40, 969698), (80, 484849), (311, 124720), (622, 62360), (1244, 31180), (1555, 24944), (1559, 24880), (2488, 15590), (3110, 12472), (3118, 12440), (4976, 7795), (6220, 6236)]