208040125

素因数分解:

$5^3\times {\mathrm{109}}^1\times {\mathrm{15269}}^1$

素因数の和:15393

約数の個数: 16

約数和(自身を含む): 262033200

約数和(自身を除く): 53993075

約数列:

[1, 5, 25, 109, 125, 545, 2725, 13625, 15269, 76345, 381725, 1664321, 1908625, 8321605, 41608025, 208040125]

約数ペア:

[(1, 208040125), (5, 41608025), (25, 8321605), (109, 1908625), (125, 1664321), (545, 381725), (2725, 76345), (13625, 15269)]