28661360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:191

約数の個数: 160

約数和(自身を含む): 85327872

約数和(自身を除く): 56666512

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 127, 130, 140, 155, 182, 208, 217, 248, 254, 260, 280, 310, 364, 403, 434, 455, 496, 508, 520, 560, 620, 635, 728, 806, 868, 889, 910, 1016, 1040, 1085, 1240, 1270, 1456, 1612, 1651, 1736, 1778, 1820, 2015, 2032, 2170, 2480, 2540, 2821, 3224, 3302, 3472, 3556, 3640, 3937, 4030, 4340, 4445, 5080, 5642, 6448, 6604, 7112, 7280, 7874, 8060, 8255, 8680, 8890, 10160, 11284, 11557, 13208, 14105, 14224, 15748, 16120, 16510, 17360, 17780, 19685, 22568, 23114, 26416, 27559, 28210, 31496, 32240, 33020, 35560, 39370, 45136, 46228, 51181, 55118, 56420, 57785, 62992, 66040, 71120, 78740, 92456, 102362, 110236, 112840, 115570, 132080, 137795, 157480, 184912, 204724, 220472, 225680, 231140, 255905, 275590, 314960, 358267, 409448, 440944, 462280, 511810, 551180, 716534, 818896, 924560, 1023620, 1102360, 1433068, 1791335, 2047240, 2204720, 2866136, 3582670, 4094480, 5732272, 7165340, 14330680, 28661360]

約数ペア:

[(1, 28661360), (2, 14330680), (4, 7165340), (5, 5732272), (7, 4094480), (8, 3582670), (10, 2866136), (13, 2204720), (14, 2047240), (16, 1791335), (20, 1433068), (26, 1102360), (28, 1023620), (31, 924560), (35, 818896), (40, 716534), (52, 551180), (56, 511810), (62, 462280), (65, 440944), (70, 409448), (80, 358267), (91, 314960), (104, 275590), (112, 255905), (124, 231140), (127, 225680), (130, 220472), (140, 204724), (155, 184912), (182, 157480), (208, 137795), (217, 132080), (248, 115570), (254, 112840), (260, 110236), (280, 102362), (310, 92456), (364, 78740), (403, 71120), (434, 66040), (455, 62992), (496, 57785), (508, 56420), (520, 55118), (560, 51181), (620, 46228), (635, 45136), (728, 39370), (806, 35560), (868, 33020), (889, 32240), (910, 31496), (1016, 28210), (1040, 27559), (1085, 26416), (1240, 23114), (1270, 22568), (1456, 19685), (1612, 17780), (1651, 17360), (1736, 16510), (1778, 16120), (1820, 15748), (2015, 14224), (2032, 14105), (2170, 13208), (2480, 11557), (2540, 11284), (2821, 10160), (3224, 8890), (3302, 8680), (3472, 8255), (3556, 8060), (3640, 7874), (3937, 7280), (4030, 7112), (4340, 6604), (4445, 6448), (5080, 5642)]