1814600

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 4337520

約数和(自身を除く): 2522920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 211, 215, 344, 422, 430, 844, 860, 1055, 1075, 1688, 1720, 2110, 2150, 4220, 4300, 5275, 8440, 8600, 9073, 10550, 18146, 21100, 36292, 42200, 45365, 72584, 90730, 181460, 226825, 362920, 453650, 907300, 1814600]

約数ペア:

[(1, 1814600), (2, 907300), (4, 453650), (5, 362920), (8, 226825), (10, 181460), (20, 90730), (25, 72584), (40, 45365), (43, 42200), (50, 36292), (86, 21100), (100, 18146), (172, 10550), (200, 9073), (211, 8600), (215, 8440), (344, 5275), (422, 4300), (430, 4220), (844, 2150), (860, 2110), (1055, 1720), (1075, 1688)]