81413280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4349}}^1$

素因数の和:4383

約数の個数: 144

約数和(自身を含む): 299262600

約数和(自身を除く): 217849320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4349, 4680, 6240, 8698, 9360, 13047, 17396, 18720, 21745, 26094, 34792, 39141, 43490, 52188, 56537, 65235, 69584, 78282, 86980, 104376, 113074, 130470, 139168, 156564, 169611, 173960, 195705, 208752, 226148, 260940, 282685, 313128, 339222, 347920, 391410, 417504, 452296, 508833, 521880, 565370, 626256, 678444, 695840, 782820, 848055, 904592, 1017666, 1043760, 1130740, 1252512, 1356888, 1565640, 1696110, 1809184, 2035332, 2087520, 2261480, 2544165, 2713776, 3131280, 3392220, 4070664, 4522960, 5088330, 5427552, 6262560, 6784440, 8141328, 9045920, 10176660, 13568880, 16282656, 20353320, 27137760, 40706640, 81413280]

約数ペア:

[(1, 81413280), (2, 40706640), (3, 27137760), (4, 20353320), (5, 16282656), (6, 13568880), (8, 10176660), (9, 9045920), (10, 8141328), (12, 6784440), (13, 6262560), (15, 5427552), (16, 5088330), (18, 4522960), (20, 4070664), (24, 3392220), (26, 3131280), (30, 2713776), (32, 2544165), (36, 2261480), (39, 2087520), (40, 2035332), (45, 1809184), (48, 1696110), (52, 1565640), (60, 1356888), (65, 1252512), (72, 1130740), (78, 1043760), (80, 1017666), (90, 904592), (96, 848055), (104, 782820), (117, 695840), (120, 678444), (130, 626256), (144, 565370), (156, 521880), (160, 508833), (180, 452296), (195, 417504), (208, 391410), (234, 347920), (240, 339222), (260, 313128), (288, 282685), (312, 260940), (360, 226148), (390, 208752), (416, 195705), (468, 173960), (480, 169611), (520, 156564), (585, 139168), (624, 130470), (720, 113074), (780, 104376), (936, 86980), (1040, 78282), (1170, 69584), (1248, 65235), (1440, 56537), (1560, 52188), (1872, 43490), (2080, 39141), (2340, 34792), (3120, 26094), (3744, 21745), (4349, 18720), (4680, 17396), (6240, 13047), (8698, 9360)]