20508711560

素因数分解:

$2^3\times 5^1\times {\mathrm{25609}}^1\times {\mathrm{20021}}^1$

素因数の和:45641

約数の個数: 32

約数和(自身を含む): 46148707800

約数和(自身を除く): 25639996240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20021, 25609, 40042, 51218, 80084, 100105, 102436, 128045, 160168, 200210, 204872, 256090, 400420, 512180, 800840, 1024360, 512717789, 1025435578, 2050871156, 2563588945, 4101742312, 5127177890, 10254355780, 20508711560]

約数ペア:

[(1, 20508711560), (2, 10254355780), (4, 5127177890), (5, 4101742312), (8, 2563588945), (10, 2050871156), (20, 1025435578), (40, 512717789), (20021, 1024360), (25609, 800840), (40042, 512180), (51218, 400420), (80084, 256090), (100105, 204872), (102436, 200210), (128045, 160168)]