20280263757

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{42697}}^1$

素因数の和:43373

約数の個数: 32

約数和(自身を含む): 30701569920

約数和(自身を除く): 10421306163

約数列:

[1, 3, 13, 19, 39, 57, 247, 641, 741, 1923, 8333, 12179, 24999, 36537, 42697, 128091, 158327, 474981, 555061, 811243, 1665183, 2433729, 10546159, 27368777, 31638477, 82106331, 355794101, 520006763, 1067382303, 1560020289, 6760087919, 20280263757]

約数ペア:

[(1, 20280263757), (3, 6760087919), (13, 1560020289), (19, 1067382303), (39, 520006763), (57, 355794101), (247, 82106331), (641, 31638477), (741, 27368777), (1923, 10546159), (8333, 2433729), (12179, 1665183), (24999, 811243), (36537, 555061), (42697, 474981), (128091, 158327)]