20769280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 160

約数和(自身を含む): 60888960

約数和(自身を除く): 40119680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 61, 64, 70, 76, 80, 95, 112, 122, 128, 133, 140, 152, 160, 190, 224, 244, 256, 266, 280, 304, 305, 320, 380, 427, 448, 488, 512, 532, 560, 608, 610, 640, 665, 760, 854, 896, 976, 1064, 1120, 1159, 1216, 1220, 1280, 1330, 1520, 1708, 1792, 1952, 2128, 2135, 2240, 2318, 2432, 2440, 2560, 2660, 3040, 3416, 3584, 3904, 4256, 4270, 4480, 4636, 4864, 4880, 5320, 5795, 6080, 6832, 7808, 8113, 8512, 8540, 8960, 9272, 9728, 9760, 10640, 11590, 12160, 13664, 15616, 16226, 17024, 17080, 17920, 18544, 19520, 21280, 23180, 24320, 27328, 31232, 32452, 34048, 34160, 37088, 39040, 40565, 42560, 46360, 48640, 54656, 64904, 68096, 68320, 74176, 78080, 81130, 85120, 92720, 109312, 129808, 136640, 148352, 156160, 162260, 170240, 185440, 218624, 259616, 273280, 296704, 324520, 340480, 370880, 519232, 546560, 593408, 649040, 741760, 1038464, 1093120, 1298080, 1483520, 2076928, 2596160, 2967040, 4153856, 5192320, 10384640, 20769280]

約数ペア:

[(1, 20769280), (2, 10384640), (4, 5192320), (5, 4153856), (7, 2967040), (8, 2596160), (10, 2076928), (14, 1483520), (16, 1298080), (19, 1093120), (20, 1038464), (28, 741760), (32, 649040), (35, 593408), (38, 546560), (40, 519232), (56, 370880), (61, 340480), (64, 324520), (70, 296704), (76, 273280), (80, 259616), (95, 218624), (112, 185440), (122, 170240), (128, 162260), (133, 156160), (140, 148352), (152, 136640), (160, 129808), (190, 109312), (224, 92720), (244, 85120), (256, 81130), (266, 78080), (280, 74176), (304, 68320), (305, 68096), (320, 64904), (380, 54656), (427, 48640), (448, 46360), (488, 42560), (512, 40565), (532, 39040), (560, 37088), (608, 34160), (610, 34048), (640, 32452), (665, 31232), (760, 27328), (854, 24320), (896, 23180), (976, 21280), (1064, 19520), (1120, 18544), (1159, 17920), (1216, 17080), (1220, 17024), (1280, 16226), (1330, 15616), (1520, 13664), (1708, 12160), (1792, 11590), (1952, 10640), (2128, 9760), (2135, 9728), (2240, 9272), (2318, 8960), (2432, 8540), (2440, 8512), (2560, 8113), (2660, 7808), (3040, 6832), (3416, 6080), (3584, 5795), (3904, 5320), (4256, 4880), (4270, 4864), (4480, 4636)]