20710976

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 112

約数和(自身を含む): 50523648

約数和(自身を除く): 29812672

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 32, 44, 52, 62, 64, 73, 88, 104, 124, 143, 146, 176, 208, 248, 286, 292, 341, 352, 403, 416, 496, 572, 584, 682, 704, 803, 806, 832, 949, 992, 1144, 1168, 1364, 1606, 1612, 1898, 1984, 2263, 2288, 2336, 2728, 3212, 3224, 3796, 4433, 4526, 4576, 4672, 5456, 6424, 6448, 7592, 8866, 9052, 9152, 10439, 10912, 12848, 12896, 15184, 17732, 18104, 20878, 21824, 24893, 25696, 25792, 29419, 30368, 35464, 36208, 41756, 49786, 51392, 58838, 60736, 70928, 72416, 83512, 99572, 117676, 141856, 144832, 167024, 199144, 235352, 283712, 323609, 334048, 398288, 470704, 647218, 668096, 796576, 941408, 1294436, 1593152, 1882816, 2588872, 5177744, 10355488, 20710976]

約数ペア:

[(1, 20710976), (2, 10355488), (4, 5177744), (8, 2588872), (11, 1882816), (13, 1593152), (16, 1294436), (22, 941408), (26, 796576), (31, 668096), (32, 647218), (44, 470704), (52, 398288), (62, 334048), (64, 323609), (73, 283712), (88, 235352), (104, 199144), (124, 167024), (143, 144832), (146, 141856), (176, 117676), (208, 99572), (248, 83512), (286, 72416), (292, 70928), (341, 60736), (352, 58838), (403, 51392), (416, 49786), (496, 41756), (572, 36208), (584, 35464), (682, 30368), (704, 29419), (803, 25792), (806, 25696), (832, 24893), (949, 21824), (992, 20878), (1144, 18104), (1168, 17732), (1364, 15184), (1606, 12896), (1612, 12848), (1898, 10912), (1984, 10439), (2263, 9152), (2288, 9052), (2336, 8866), (2728, 7592), (3212, 6448), (3224, 6424), (3796, 5456), (4433, 4672), (4526, 4576)]