20477880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:370

約数の個数: 128

約数和(自身を含む): 69523200

約数和(自身を除く): 49045320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 67, 72, 90, 108, 120, 134, 135, 180, 201, 216, 268, 270, 283, 335, 360, 402, 536, 540, 566, 603, 670, 804, 849, 1005, 1080, 1132, 1206, 1340, 1415, 1608, 1698, 1809, 2010, 2264, 2412, 2547, 2680, 2830, 3015, 3396, 3618, 4020, 4245, 4824, 5094, 5660, 6030, 6792, 7236, 7641, 8040, 8490, 9045, 10188, 11320, 12060, 12735, 14472, 15282, 16980, 18090, 18961, 20376, 24120, 25470, 30564, 33960, 36180, 37922, 38205, 50940, 56883, 61128, 72360, 75844, 76410, 94805, 101880, 113766, 151688, 152820, 170649, 189610, 227532, 284415, 305640, 341298, 379220, 455064, 511947, 568830, 682596, 758440, 853245, 1023894, 1137660, 1365192, 1706490, 2047788, 2275320, 2559735, 3412980, 4095576, 5119470, 6825960, 10238940, 20477880]

約数ペア:

[(1, 20477880), (2, 10238940), (3, 6825960), (4, 5119470), (5, 4095576), (6, 3412980), (8, 2559735), (9, 2275320), (10, 2047788), (12, 1706490), (15, 1365192), (18, 1137660), (20, 1023894), (24, 853245), (27, 758440), (30, 682596), (36, 568830), (40, 511947), (45, 455064), (54, 379220), (60, 341298), (67, 305640), (72, 284415), (90, 227532), (108, 189610), (120, 170649), (134, 152820), (135, 151688), (180, 113766), (201, 101880), (216, 94805), (268, 76410), (270, 75844), (283, 72360), (335, 61128), (360, 56883), (402, 50940), (536, 38205), (540, 37922), (566, 36180), (603, 33960), (670, 30564), (804, 25470), (849, 24120), (1005, 20376), (1080, 18961), (1132, 18090), (1206, 16980), (1340, 15282), (1415, 14472), (1608, 12735), (1698, 12060), (1809, 11320), (2010, 10188), (2264, 9045), (2412, 8490), (2547, 8040), (2680, 7641), (2830, 7236), (3015, 6792), (3396, 6030), (3618, 5660), (4020, 5094), (4245, 4824)]