1991489316

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 4935168000

約数和(自身を除く): 2943678684

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 101, 138, 199, 202, 276, 303, 359, 398, 404, 597, 606, 718, 796, 1077, 1194, 1212, 1436, 2154, 2323, 2388, 4308, 4577, 4646, 6969, 8257, 9154, 9292, 13731, 13938, 16514, 18308, 20099, 24771, 27462, 27876, 33028, 36259, 40198, 49542, 54924, 60297, 71441, 72518, 80396, 99084, 108777, 120594, 142882, 145036, 214323, 217554, 241188, 285764, 428646, 435108, 462277, 833957, 857292, 924554, 1386831, 1643143, 1667914, 1849108, 2501871, 2773662, 3286286, 3335828, 4929429, 5003742, 5547324, 6572572, 7215541, 9858858, 10007484, 14431082, 19717716, 21646623, 28862164, 43293246, 86586492, 165957443, 331914886, 497872329, 663829772, 995744658, 1991489316]

約数ペア:

[(1, 1991489316), (2, 995744658), (3, 663829772), (4, 497872329), (6, 331914886), (12, 165957443), (23, 86586492), (46, 43293246), (69, 28862164), (92, 21646623), (101, 19717716), (138, 14431082), (199, 10007484), (202, 9858858), (276, 7215541), (303, 6572572), (359, 5547324), (398, 5003742), (404, 4929429), (597, 3335828), (606, 3286286), (718, 2773662), (796, 2501871), (1077, 1849108), (1194, 1667914), (1212, 1643143), (1436, 1386831), (2154, 924554), (2323, 857292), (2388, 833957), (4308, 462277), (4577, 435108), (4646, 428646), (6969, 285764), (8257, 241188), (9154, 217554), (9292, 214323), (13731, 145036), (13938, 142882), (16514, 120594), (18308, 108777), (20099, 99084), (24771, 80396), (27462, 72518), (27876, 71441), (33028, 60297), (36259, 54924), (40198, 49542)]