20476520

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{827}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 46202400

約数和(自身を除く): 25725880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 827, 1238, 1654, 2476, 3095, 3308, 4135, 4952, 6190, 6616, 8270, 12380, 16540, 24760, 33080, 511913, 1023826, 2047652, 2559565, 4095304, 5119130, 10238260, 20476520]

約数ペア:

[(1, 20476520), (2, 10238260), (4, 5119130), (5, 4095304), (8, 2559565), (10, 2047652), (20, 1023826), (40, 511913), (619, 33080), (827, 24760), (1238, 16540), (1654, 12380), (2476, 8270), (3095, 6616), (3308, 6190), (4135, 4952)]