20287644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2767}}^1$

素因数の和:2834

約数の個数: 48

約数和(自身を含む): 52082688

約数和(自身を除く): 31795044

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2767, 3666, 5534, 7332, 8301, 11068, 16602, 33204, 35971, 71942, 107913, 130049, 143884, 215826, 260098, 390147, 431652, 520196, 780294, 1560588, 1690637, 3381274, 5071911, 6762548, 10143822, 20287644]

約数ペア:

[(1, 20287644), (2, 10143822), (3, 6762548), (4, 5071911), (6, 3381274), (12, 1690637), (13, 1560588), (26, 780294), (39, 520196), (47, 431652), (52, 390147), (78, 260098), (94, 215826), (141, 143884), (156, 130049), (188, 107913), (282, 71942), (564, 35971), (611, 33204), (1222, 16602), (1833, 11068), (2444, 8301), (2767, 7332), (3666, 5534)]