28851680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:149

約数の個数: 144

約数和(自身を含む): 81348624

約数和(自身を除く): 52496944

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 97, 104, 110, 130, 143, 160, 169, 176, 194, 208, 220, 260, 286, 338, 352, 388, 416, 440, 485, 520, 572, 676, 715, 776, 845, 880, 970, 1040, 1067, 1144, 1261, 1352, 1430, 1552, 1690, 1760, 1859, 1940, 2080, 2134, 2288, 2522, 2704, 2860, 3104, 3380, 3718, 3880, 4268, 4576, 5044, 5335, 5408, 5720, 6305, 6760, 7436, 7760, 8536, 9295, 10088, 10670, 11440, 12610, 13520, 13871, 14872, 15520, 16393, 17072, 18590, 20176, 21340, 22880, 25220, 27040, 27742, 29744, 32786, 34144, 37180, 40352, 42680, 50440, 55484, 59488, 65572, 69355, 74360, 81965, 85360, 100880, 110968, 131144, 138710, 148720, 163930, 170720, 180323, 201760, 221936, 262288, 277420, 297440, 327860, 360646, 443872, 524576, 554840, 655720, 721292, 901615, 1109680, 1311440, 1442584, 1803230, 2219360, 2622880, 2885168, 3606460, 5770336, 7212920, 14425840, 28851680]

約数ペア:

[(1, 28851680), (2, 14425840), (4, 7212920), (5, 5770336), (8, 3606460), (10, 2885168), (11, 2622880), (13, 2219360), (16, 1803230), (20, 1442584), (22, 1311440), (26, 1109680), (32, 901615), (40, 721292), (44, 655720), (52, 554840), (55, 524576), (65, 443872), (80, 360646), (88, 327860), (97, 297440), (104, 277420), (110, 262288), (130, 221936), (143, 201760), (160, 180323), (169, 170720), (176, 163930), (194, 148720), (208, 138710), (220, 131144), (260, 110968), (286, 100880), (338, 85360), (352, 81965), (388, 74360), (416, 69355), (440, 65572), (485, 59488), (520, 55484), (572, 50440), (676, 42680), (715, 40352), (776, 37180), (845, 34144), (880, 32786), (970, 29744), (1040, 27742), (1067, 27040), (1144, 25220), (1261, 22880), (1352, 21340), (1430, 20176), (1552, 18590), (1690, 17072), (1760, 16393), (1859, 15520), (1940, 14872), (2080, 13871), (2134, 13520), (2288, 12610), (2522, 11440), (2704, 10670), (2860, 10088), (3104, 9295), (3380, 8536), (3718, 7760), (3880, 7436), (4268, 6760), (4576, 6305), (5044, 5720), (5335, 5408)]