20377480

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{823}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 45979200

約数和(自身を除く): 25601720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 823, 1238, 1646, 2476, 3095, 3292, 4115, 4952, 6190, 6584, 8230, 12380, 16460, 24760, 32920, 509437, 1018874, 2037748, 2547185, 4075496, 5094370, 10188740, 20377480]

約数ペア:

[(1, 20377480), (2, 10188740), (4, 5094370), (5, 4075496), (8, 2547185), (10, 2037748), (20, 1018874), (40, 509437), (619, 32920), (823, 24760), (1238, 16460), (1646, 12380), (2476, 8230), (3095, 6584), (3292, 6190), (4115, 4952)]