870820225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{102149}}^1$

素因数の和:102201

約数の個数: 24

約数和(自身を含む): 1215993600

約数和(自身を除く): 345173375

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 8525, 102149, 510745, 1123639, 2553725, 3166619, 5618195, 15833095, 28090975, 34832809, 79165475, 174164045, 870820225]

約数ペア:

[(1, 870820225), (5, 174164045), (11, 79165475), (25, 34832809), (31, 28090975), (55, 15833095), (155, 5618195), (275, 3166619), (341, 2553725), (775, 1123639), (1705, 510745), (8525, 102149)]