20196594520

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2011613}}^1$

素因数の和:2011875

約数の個数: 32

約数和(自身を含む): 45623405520

約数和(自身を除く): 25426811000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 2011613, 4023226, 8046452, 10058065, 16092904, 20116130, 40232260, 80464520, 504914863, 1009829726, 2019659452, 2524574315, 4039318904, 5049148630, 10098297260, 20196594520]

約数ペア:

[(1, 20196594520), (2, 10098297260), (4, 5049148630), (5, 4039318904), (8, 2524574315), (10, 2019659452), (20, 1009829726), (40, 504914863), (251, 80464520), (502, 40232260), (1004, 20116130), (1255, 16092904), (2008, 10058065), (2510, 8046452), (5020, 4023226), (10040, 2011613)]