31177520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 80352000

約数和(自身を除く): 49174480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 499, 568, 710, 781, 880, 998, 1136, 1420, 1562, 1996, 2495, 2840, 3124, 3905, 3992, 4990, 5489, 5680, 6248, 7810, 7984, 9980, 10978, 12496, 15620, 19960, 21956, 27445, 31240, 35429, 39920, 43912, 54890, 62480, 70858, 87824, 109780, 141716, 177145, 219560, 283432, 354290, 389719, 439120, 566864, 708580, 779438, 1417160, 1558876, 1948595, 2834320, 3117752, 3897190, 6235504, 7794380, 15588760, 31177520]

約数ペア:

[(1, 31177520), (2, 15588760), (4, 7794380), (5, 6235504), (8, 3897190), (10, 3117752), (11, 2834320), (16, 1948595), (20, 1558876), (22, 1417160), (40, 779438), (44, 708580), (55, 566864), (71, 439120), (80, 389719), (88, 354290), (110, 283432), (142, 219560), (176, 177145), (220, 141716), (284, 109780), (355, 87824), (440, 70858), (499, 62480), (568, 54890), (710, 43912), (781, 39920), (880, 35429), (998, 31240), (1136, 27445), (1420, 21956), (1562, 19960), (1996, 15620), (2495, 12496), (2840, 10978), (3124, 9980), (3905, 7984), (3992, 7810), (4990, 6248), (5489, 5680)]