1991569161608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{2116691}}^1$

素因数の和:2116902

約数の個数: 64

約数和(自身を含む): 4107229156800

約数和(自身を除く): 2115659995192

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 109, 166, 218, 332, 436, 664, 872, 1079, 1417, 2158, 2834, 4316, 5668, 8632, 9047, 11336, 18094, 36188, 72376, 117611, 235222, 470444, 940888, 2116691, 4233382, 8466764, 16933528, 27516983, 55033966, 110067932, 175685353, 220135864, 230719319, 351370706, 461438638, 702741412, 922877276, 1405482824, 1845754552, 2283909589, 2999351147, 4567819178, 5998702294, 9135638356, 11997404588, 18271276712, 19149703477, 23994809176, 38299406954, 76598813908, 153197627816, 248946145201, 497892290402, 995784580804, 1991569161608]

約数ペア:

[(1, 1991569161608), (2, 995784580804), (4, 497892290402), (8, 248946145201), (13, 153197627816), (26, 76598813908), (52, 38299406954), (83, 23994809176), (104, 19149703477), (109, 18271276712), (166, 11997404588), (218, 9135638356), (332, 5998702294), (436, 4567819178), (664, 2999351147), (872, 2283909589), (1079, 1845754552), (1417, 1405482824), (2158, 922877276), (2834, 702741412), (4316, 461438638), (5668, 351370706), (8632, 230719319), (9047, 220135864), (11336, 175685353), (18094, 110067932), (36188, 55033966), (72376, 27516983), (117611, 16933528), (235222, 8466764), (470444, 4233382), (940888, 2116691)]