65443780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{21961}}^1$

素因数の和:22119

約数の個数: 24

約数和(自身を含む): 138360600

約数和(自身を除く): 72916820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 21961, 43922, 87844, 109805, 219610, 439220, 3272189, 6544378, 13088756, 16360945, 32721890, 65443780]

約数ペア:

[(1, 65443780), (2, 32721890), (4, 16360945), (5, 13088756), (10, 6544378), (20, 3272189), (149, 439220), (298, 219610), (596, 109805), (745, 87844), (1490, 43922), (2980, 21961)]