20471850

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 144

約数和(自身を含む): 64454208

約数和(自身を除く): 43982358

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 67, 70, 75, 90, 97, 105, 126, 134, 150, 175, 194, 201, 210, 225, 291, 315, 335, 350, 402, 450, 469, 485, 525, 582, 603, 630, 670, 679, 873, 938, 970, 1005, 1050, 1206, 1358, 1407, 1455, 1575, 1675, 1746, 2010, 2037, 2345, 2425, 2814, 2910, 3015, 3150, 3350, 3395, 4074, 4221, 4365, 4690, 4850, 5025, 6030, 6111, 6499, 6790, 7035, 7275, 8442, 8730, 10050, 10185, 11725, 12222, 12998, 14070, 14550, 15075, 16975, 19497, 20370, 21105, 21825, 23450, 30150, 30555, 32495, 33950, 35175, 38994, 42210, 43650, 45493, 50925, 58491, 61110, 64990, 70350, 90986, 97485, 101850, 105525, 116982, 136479, 152775, 162475, 194970, 211050, 227465, 272958, 292455, 305550, 324950, 409437, 454930, 487425, 584910, 682395, 818874, 974850, 1137325, 1364790, 1462275, 2047185, 2274650, 2924550, 3411975, 4094370, 6823950, 10235925, 20471850]

約数ペア:

[(1, 20471850), (2, 10235925), (3, 6823950), (5, 4094370), (6, 3411975), (7, 2924550), (9, 2274650), (10, 2047185), (14, 1462275), (15, 1364790), (18, 1137325), (21, 974850), (25, 818874), (30, 682395), (35, 584910), (42, 487425), (45, 454930), (50, 409437), (63, 324950), (67, 305550), (70, 292455), (75, 272958), (90, 227465), (97, 211050), (105, 194970), (126, 162475), (134, 152775), (150, 136479), (175, 116982), (194, 105525), (201, 101850), (210, 97485), (225, 90986), (291, 70350), (315, 64990), (335, 61110), (350, 58491), (402, 50925), (450, 45493), (469, 43650), (485, 42210), (525, 38994), (582, 35175), (603, 33950), (630, 32495), (670, 30555), (679, 30150), (873, 23450), (938, 21825), (970, 21105), (1005, 20370), (1050, 19497), (1206, 16975), (1358, 15075), (1407, 14550), (1455, 14070), (1575, 12998), (1675, 12222), (1746, 11725), (2010, 10185), (2037, 10050), (2345, 8730), (2425, 8442), (2814, 7275), (2910, 7035), (3015, 6790), (3150, 6499), (3350, 6111), (3395, 6030), (4074, 5025), (4221, 4850), (4365, 4690)]