39649840

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4547}}^1$

素因数の和:4669

約数の個数: 40

約数和(自身を含む): 93052080

約数和(自身を除く): 53402240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 4547, 8720, 9094, 18188, 22735, 36376, 45470, 72752, 90940, 181880, 363760, 495623, 991246, 1982492, 2478115, 3964984, 4956230, 7929968, 9912460, 19824920, 39649840]

約数ペア:

[(1, 39649840), (2, 19824920), (4, 9912460), (5, 7929968), (8, 4956230), (10, 3964984), (16, 2478115), (20, 1982492), (40, 991246), (80, 495623), (109, 363760), (218, 181880), (436, 90940), (545, 72752), (872, 45470), (1090, 36376), (1744, 22735), (2180, 18188), (4360, 9094), (4547, 8720)]