20431400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 53434080

約数和(自身を除く): 33002680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 37, 40, 44, 50, 55, 74, 88, 100, 110, 148, 185, 200, 220, 251, 275, 296, 370, 407, 440, 502, 550, 740, 814, 925, 1004, 1100, 1255, 1480, 1628, 1850, 2008, 2035, 2200, 2510, 2761, 3256, 3700, 4070, 5020, 5522, 6275, 7400, 8140, 9287, 10040, 10175, 11044, 12550, 13805, 16280, 18574, 20350, 22088, 25100, 27610, 37148, 40700, 46435, 50200, 55220, 69025, 74296, 81400, 92870, 102157, 110440, 138050, 185740, 204314, 232175, 276100, 371480, 408628, 464350, 510785, 552200, 817256, 928700, 1021570, 1857400, 2043140, 2553925, 4086280, 5107850, 10215700, 20431400]

約数ペア:

[(1, 20431400), (2, 10215700), (4, 5107850), (5, 4086280), (8, 2553925), (10, 2043140), (11, 1857400), (20, 1021570), (22, 928700), (25, 817256), (37, 552200), (40, 510785), (44, 464350), (50, 408628), (55, 371480), (74, 276100), (88, 232175), (100, 204314), (110, 185740), (148, 138050), (185, 110440), (200, 102157), (220, 92870), (251, 81400), (275, 74296), (296, 69025), (370, 55220), (407, 50200), (440, 46435), (502, 40700), (550, 37148), (740, 27610), (814, 25100), (925, 22088), (1004, 20350), (1100, 18574), (1255, 16280), (1480, 13805), (1628, 12550), (1850, 11044), (2008, 10175), (2035, 10040), (2200, 9287), (2510, 8140), (2761, 7400), (3256, 6275), (3700, 5522), (4070, 5020)]