208200920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{39733}}^1$

素因数の和:39875

約数の個数: 32

約数和(自身を含む): 472039920

約数和(自身を除く): 263839000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 39733, 79466, 158932, 198665, 317864, 397330, 794660, 1589320, 5205023, 10410046, 20820092, 26025115, 41640184, 52050230, 104100460, 208200920]

約数ペア:

[(1, 208200920), (2, 104100460), (4, 52050230), (5, 41640184), (8, 26025115), (10, 20820092), (20, 10410046), (40, 5205023), (131, 1589320), (262, 794660), (524, 397330), (655, 317864), (1048, 198665), (1310, 158932), (2620, 79466), (5240, 39733)]