201984575

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{47807}}^1$

素因数の和:47843

約数の個数: 18

約数和(自身を含む): 271214784

約数和(自身を除く): 69230209

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 47807, 239035, 621491, 1195175, 3107455, 8079383, 15537275, 40396915, 201984575]

約数ペア:

[(1, 201984575), (5, 40396915), (13, 15537275), (25, 8079383), (65, 3107455), (169, 1195175), (325, 621491), (845, 239035), (4225, 47807)]