20036500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3643}}^1$

素因数の和:3673

約数の個数: 48

約数和(自身を含む): 47750976

約数和(自身を除く): 27714476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3643, 5500, 7286, 14572, 18215, 36430, 40073, 72860, 80146, 91075, 160292, 182150, 200365, 364300, 400730, 455375, 801460, 910750, 1001825, 1821500, 2003650, 4007300, 5009125, 10018250, 20036500]

約数ペア:

[(1, 20036500), (2, 10018250), (4, 5009125), (5, 4007300), (10, 2003650), (11, 1821500), (20, 1001825), (22, 910750), (25, 801460), (44, 455375), (50, 400730), (55, 364300), (100, 200365), (110, 182150), (125, 160292), (220, 91075), (250, 80146), (275, 72860), (500, 40073), (550, 36430), (1100, 18215), (1375, 14572), (2750, 7286), (3643, 5500)]