87147220

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 186556608

約数和(自身を除く): 99409388

約数列:

[1, 2, 4, 5, 10, 20, 107, 193, 211, 214, 386, 422, 428, 535, 772, 844, 965, 1055, 1070, 1930, 2110, 2140, 3860, 4220, 20651, 22577, 40723, 41302, 45154, 81446, 82604, 90308, 103255, 112885, 162892, 203615, 206510, 225770, 407230, 413020, 451540, 814460, 4357361, 8714722, 17429444, 21786805, 43573610, 87147220]

約数ペア:

[(1, 87147220), (2, 43573610), (4, 21786805), (5, 17429444), (10, 8714722), (20, 4357361), (107, 814460), (193, 451540), (211, 413020), (214, 407230), (386, 225770), (422, 206510), (428, 203615), (535, 162892), (772, 112885), (844, 103255), (965, 90308), (1055, 82604), (1070, 81446), (1930, 45154), (2110, 41302), (2140, 40723), (3860, 22577), (4220, 20651)]