65511680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:192

約数の個数: 144

約数和(自身を含む): 175816704

約数和(自身を除く): 110305024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 127, 128, 130, 155, 160, 208, 248, 254, 256, 260, 310, 320, 403, 416, 496, 508, 520, 620, 635, 640, 806, 832, 992, 1016, 1040, 1240, 1270, 1280, 1612, 1651, 1664, 1984, 2015, 2032, 2080, 2480, 2540, 3224, 3302, 3328, 3937, 3968, 4030, 4064, 4160, 4960, 5080, 6448, 6604, 7874, 7936, 8060, 8128, 8255, 8320, 9920, 10160, 12896, 13208, 15748, 16120, 16256, 16510, 16640, 19685, 19840, 20320, 25792, 26416, 31496, 32240, 32512, 33020, 39370, 39680, 40640, 51181, 51584, 52832, 62992, 64480, 66040, 78740, 81280, 102362, 103168, 105664, 125984, 128960, 132080, 157480, 162560, 204724, 211328, 251968, 255905, 257920, 264160, 314960, 409448, 422656, 503936, 511810, 515840, 528320, 629920, 818896, 1007872, 1023620, 1056640, 1259840, 1637792, 2047240, 2113280, 2519680, 3275584, 4094480, 5039360, 6551168, 8188960, 13102336, 16377920, 32755840, 65511680]

約数ペア:

[(1, 65511680), (2, 32755840), (4, 16377920), (5, 13102336), (8, 8188960), (10, 6551168), (13, 5039360), (16, 4094480), (20, 3275584), (26, 2519680), (31, 2113280), (32, 2047240), (40, 1637792), (52, 1259840), (62, 1056640), (64, 1023620), (65, 1007872), (80, 818896), (104, 629920), (124, 528320), (127, 515840), (128, 511810), (130, 503936), (155, 422656), (160, 409448), (208, 314960), (248, 264160), (254, 257920), (256, 255905), (260, 251968), (310, 211328), (320, 204724), (403, 162560), (416, 157480), (496, 132080), (508, 128960), (520, 125984), (620, 105664), (635, 103168), (640, 102362), (806, 81280), (832, 78740), (992, 66040), (1016, 64480), (1040, 62992), (1240, 52832), (1270, 51584), (1280, 51181), (1612, 40640), (1651, 39680), (1664, 39370), (1984, 33020), (2015, 32512), (2032, 32240), (2080, 31496), (2480, 26416), (2540, 25792), (3224, 20320), (3302, 19840), (3328, 19685), (3937, 16640), (3968, 16510), (4030, 16256), (4064, 16120), (4160, 15748), (4960, 13208), (5080, 12896), (6448, 10160), (6604, 9920), (7874, 8320), (7936, 8255), (8060, 8128)]