81469560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 256089600

約数和(自身を除く): 174620040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 59, 60, 74, 111, 118, 120, 148, 177, 185, 222, 236, 295, 296, 311, 354, 370, 444, 472, 555, 590, 622, 708, 740, 885, 888, 933, 1110, 1180, 1244, 1416, 1480, 1555, 1770, 1866, 2183, 2220, 2360, 2488, 3110, 3540, 3732, 4366, 4440, 4665, 6220, 6549, 7080, 7464, 8732, 9330, 10915, 11507, 12440, 13098, 17464, 18349, 18660, 21830, 23014, 26196, 32745, 34521, 36698, 37320, 43660, 46028, 52392, 55047, 57535, 65490, 69042, 73396, 87320, 91745, 92056, 110094, 115070, 130980, 138084, 146792, 172605, 183490, 220188, 230140, 261960, 275235, 276168, 345210, 366980, 440376, 460280, 550470, 678913, 690420, 733960, 1100940, 1357826, 1380840, 2036739, 2201880, 2715652, 3394565, 4073478, 5431304, 6789130, 8146956, 10183695, 13578260, 16293912, 20367390, 27156520, 40734780, 81469560]

約数ペア:

[(1, 81469560), (2, 40734780), (3, 27156520), (4, 20367390), (5, 16293912), (6, 13578260), (8, 10183695), (10, 8146956), (12, 6789130), (15, 5431304), (20, 4073478), (24, 3394565), (30, 2715652), (37, 2201880), (40, 2036739), (59, 1380840), (60, 1357826), (74, 1100940), (111, 733960), (118, 690420), (120, 678913), (148, 550470), (177, 460280), (185, 440376), (222, 366980), (236, 345210), (295, 276168), (296, 275235), (311, 261960), (354, 230140), (370, 220188), (444, 183490), (472, 172605), (555, 146792), (590, 138084), (622, 130980), (708, 115070), (740, 110094), (885, 92056), (888, 91745), (933, 87320), (1110, 73396), (1180, 69042), (1244, 65490), (1416, 57535), (1480, 55047), (1555, 52392), (1770, 46028), (1866, 43660), (2183, 37320), (2220, 36698), (2360, 34521), (2488, 32745), (3110, 26196), (3540, 23014), (3732, 21830), (4366, 18660), (4440, 18349), (4665, 17464), (6220, 13098), (6549, 12440), (7080, 11507), (7464, 10915), (8732, 9330)]