20361500

素因数分解:

$2^2\times 5^3\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 44911776

約数和(自身を除く): 24550276

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 193, 211, 250, 386, 422, 500, 772, 844, 965, 1055, 1930, 2110, 3860, 4220, 4825, 5275, 9650, 10550, 19300, 21100, 24125, 26375, 40723, 48250, 52750, 81446, 96500, 105500, 162892, 203615, 407230, 814460, 1018075, 2036150, 4072300, 5090375, 10180750, 20361500]

約数ペア:

[(1, 20361500), (2, 10180750), (4, 5090375), (5, 4072300), (10, 2036150), (20, 1018075), (25, 814460), (50, 407230), (100, 203615), (125, 162892), (193, 105500), (211, 96500), (250, 81446), (386, 52750), (422, 48250), (500, 40723), (772, 26375), (844, 24125), (965, 21100), (1055, 19300), (1930, 10550), (2110, 9650), (3860, 5275), (4220, 4825)]