28083720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:587

約数の個数: 128

約数和(自身を含む): 97920000

約数和(自身を除く): 69836280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 67, 70, 84, 105, 120, 134, 140, 168, 201, 210, 268, 280, 335, 402, 420, 469, 499, 536, 670, 804, 840, 938, 998, 1005, 1340, 1407, 1497, 1608, 1876, 1996, 2010, 2345, 2495, 2680, 2814, 2994, 3493, 3752, 3992, 4020, 4690, 4990, 5628, 5988, 6986, 7035, 7485, 8040, 9380, 9980, 10479, 11256, 11976, 13972, 14070, 14970, 17465, 18760, 19960, 20958, 27944, 28140, 29940, 33433, 34930, 41916, 52395, 56280, 59880, 66866, 69860, 83832, 100299, 104790, 133732, 139720, 167165, 200598, 209580, 234031, 267464, 334330, 401196, 419160, 468062, 501495, 668660, 702093, 802392, 936124, 1002990, 1170155, 1337320, 1404186, 1872248, 2005980, 2340310, 2808372, 3510465, 4011960, 4680620, 5616744, 7020930, 9361240, 14041860, 28083720]

約数ペア:

[(1, 28083720), (2, 14041860), (3, 9361240), (4, 7020930), (5, 5616744), (6, 4680620), (7, 4011960), (8, 3510465), (10, 2808372), (12, 2340310), (14, 2005980), (15, 1872248), (20, 1404186), (21, 1337320), (24, 1170155), (28, 1002990), (30, 936124), (35, 802392), (40, 702093), (42, 668660), (56, 501495), (60, 468062), (67, 419160), (70, 401196), (84, 334330), (105, 267464), (120, 234031), (134, 209580), (140, 200598), (168, 167165), (201, 139720), (210, 133732), (268, 104790), (280, 100299), (335, 83832), (402, 69860), (420, 66866), (469, 59880), (499, 56280), (536, 52395), (670, 41916), (804, 34930), (840, 33433), (938, 29940), (998, 28140), (1005, 27944), (1340, 20958), (1407, 19960), (1497, 18760), (1608, 17465), (1876, 14970), (1996, 14070), (2010, 13972), (2345, 11976), (2495, 11256), (2680, 10479), (2814, 9980), (2994, 9380), (3493, 8040), (3752, 7485), (3992, 7035), (4020, 6986), (4690, 5988), (4990, 5628)]