685905440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:607

約数の個数: 144

約数和(自身を含む): 1809864000

約数和(自身を除く): 1123958560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 80, 88, 110, 121, 142, 160, 176, 220, 242, 284, 352, 355, 440, 484, 499, 568, 605, 710, 781, 880, 968, 998, 1136, 1210, 1420, 1562, 1760, 1936, 1996, 2272, 2420, 2495, 2840, 3124, 3872, 3905, 3992, 4840, 4990, 5489, 5680, 6248, 7810, 7984, 8591, 9680, 9980, 10978, 11360, 12496, 15620, 15968, 17182, 19360, 19960, 21956, 24992, 27445, 31240, 34364, 35429, 39920, 42955, 43912, 54890, 60379, 62480, 68728, 70858, 79840, 85910, 87824, 109780, 120758, 124960, 137456, 141716, 171820, 175648, 177145, 219560, 241516, 274912, 283432, 301895, 343640, 354290, 389719, 439120, 483032, 566864, 603790, 687280, 708580, 779438, 878240, 966064, 1133728, 1207580, 1374560, 1417160, 1558876, 1932128, 1948595, 2415160, 2834320, 3117752, 3897190, 4286909, 4830320, 5668640, 6235504, 7794380, 8573818, 9660640, 12471008, 15588760, 17147636, 21434545, 31177520, 34295272, 42869090, 62355040, 68590544, 85738180, 137181088, 171476360, 342952720, 685905440]

約数ペア:

[(1, 685905440), (2, 342952720), (4, 171476360), (5, 137181088), (8, 85738180), (10, 68590544), (11, 62355040), (16, 42869090), (20, 34295272), (22, 31177520), (32, 21434545), (40, 17147636), (44, 15588760), (55, 12471008), (71, 9660640), (80, 8573818), (88, 7794380), (110, 6235504), (121, 5668640), (142, 4830320), (160, 4286909), (176, 3897190), (220, 3117752), (242, 2834320), (284, 2415160), (352, 1948595), (355, 1932128), (440, 1558876), (484, 1417160), (499, 1374560), (568, 1207580), (605, 1133728), (710, 966064), (781, 878240), (880, 779438), (968, 708580), (998, 687280), (1136, 603790), (1210, 566864), (1420, 483032), (1562, 439120), (1760, 389719), (1936, 354290), (1996, 343640), (2272, 301895), (2420, 283432), (2495, 274912), (2840, 241516), (3124, 219560), (3872, 177145), (3905, 175648), (3992, 171820), (4840, 141716), (4990, 137456), (5489, 124960), (5680, 120758), (6248, 109780), (7810, 87824), (7984, 85910), (8591, 79840), (9680, 70858), (9980, 68728), (10978, 62480), (11360, 60379), (12496, 54890), (15620, 43912), (15968, 42955), (17182, 39920), (19360, 35429), (19960, 34364), (21956, 31240), (24992, 27445)]