128866816

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1$

素因数の和:1069

約数の個数: 80

約数和(自身を含む): 292168800

約数和(自身を除く): 163301984

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 416, 494, 512, 608, 832, 988, 1019, 1216, 1664, 1976, 2038, 2432, 3328, 3952, 4076, 4864, 6656, 7904, 8152, 9728, 13247, 15808, 16304, 19361, 26494, 31616, 32608, 38722, 52988, 63232, 65216, 77444, 105976, 126464, 130432, 154888, 211952, 251693, 260864, 309776, 423904, 503386, 521728, 619552, 847808, 1006772, 1239104, 1695616, 2013544, 2478208, 3391232, 4027088, 4956416, 6782464, 8054176, 9912832, 16108352, 32216704, 64433408, 128866816]

約数ペア:

[(1, 128866816), (2, 64433408), (4, 32216704), (8, 16108352), (13, 9912832), (16, 8054176), (19, 6782464), (26, 4956416), (32, 4027088), (38, 3391232), (52, 2478208), (64, 2013544), (76, 1695616), (104, 1239104), (128, 1006772), (152, 847808), (208, 619552), (247, 521728), (256, 503386), (304, 423904), (416, 309776), (494, 260864), (512, 251693), (608, 211952), (832, 154888), (988, 130432), (1019, 126464), (1216, 105976), (1664, 77444), (1976, 65216), (2038, 63232), (2432, 52988), (3328, 38722), (3952, 32608), (4076, 31616), (4864, 26494), (6656, 19361), (7904, 16304), (8152, 15808), (9728, 13247)]