205468240

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{5147}}^1$

素因数の和:5659

約数の個数: 40

約数和(自身を含む): 478764000

約数和(自身を除く): 273295760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2495, 3992, 4990, 5147, 7984, 9980, 10294, 19960, 20588, 25735, 39920, 41176, 51470, 82352, 102940, 205880, 411760, 2568353, 5136706, 10273412, 12841765, 20546824, 25683530, 41093648, 51367060, 102734120, 205468240]

約数ペア:

[(1, 205468240), (2, 102734120), (4, 51367060), (5, 41093648), (8, 25683530), (10, 20546824), (16, 12841765), (20, 10273412), (40, 5136706), (80, 2568353), (499, 411760), (998, 205880), (1996, 102940), (2495, 82352), (3992, 51470), (4990, 41176), (5147, 39920), (7984, 25735), (9980, 20588), (10294, 19960)]