18897080

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2063}}^1$

素因数の和:2303

約数の個数: 32

約数和(自身を含む): 42724800

約数和(自身を除く): 23827720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2063, 2290, 4126, 4580, 8252, 9160, 10315, 16504, 20630, 41260, 82520, 472427, 944854, 1889708, 2362135, 3779416, 4724270, 9448540, 18897080]

約数ペア:

[(1, 18897080), (2, 9448540), (4, 4724270), (5, 3779416), (8, 2362135), (10, 1889708), (20, 944854), (40, 472427), (229, 82520), (458, 41260), (916, 20630), (1145, 16504), (1832, 10315), (2063, 9160), (2290, 8252), (4126, 4580)]