17982920

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{971}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 40590720

約数和(自身を除く): 22607800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 971, 1852, 1942, 2315, 3704, 3884, 4630, 4855, 7768, 9260, 9710, 18520, 19420, 38840, 449573, 899146, 1798292, 2247865, 3596584, 4495730, 8991460, 17982920]

約数ペア:

[(1, 17982920), (2, 8991460), (4, 4495730), (5, 3596584), (8, 2247865), (10, 1798292), (20, 899146), (40, 449573), (463, 38840), (926, 19420), (971, 18520), (1852, 9710), (1942, 9260), (2315, 7768), (3704, 4855), (3884, 4630)]