19854848

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:207

約数の個数: 80

約数和(自身を含む): 45257520

約数和(自身を除く): 25402672

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 157, 208, 247, 256, 304, 314, 416, 494, 512, 608, 628, 832, 988, 1216, 1256, 1664, 1976, 2041, 2432, 2512, 2983, 3328, 3952, 4082, 4864, 5024, 5966, 6656, 7904, 8164, 9728, 10048, 11932, 15808, 16328, 20096, 23864, 31616, 32656, 38779, 40192, 47728, 63232, 65312, 77558, 80384, 95456, 126464, 130624, 155116, 190912, 261248, 310232, 381824, 522496, 620464, 763648, 1044992, 1240928, 1527296, 2481856, 4963712, 9927424, 19854848]

約数ペア:

[(1, 19854848), (2, 9927424), (4, 4963712), (8, 2481856), (13, 1527296), (16, 1240928), (19, 1044992), (26, 763648), (32, 620464), (38, 522496), (52, 381824), (64, 310232), (76, 261248), (104, 190912), (128, 155116), (152, 130624), (157, 126464), (208, 95456), (247, 80384), (256, 77558), (304, 65312), (314, 63232), (416, 47728), (494, 40192), (512, 38779), (608, 32656), (628, 31616), (832, 23864), (988, 20096), (1216, 16328), (1256, 15808), (1664, 11932), (1976, 10048), (2041, 9728), (2432, 8164), (2512, 7904), (2983, 6656), (3328, 5966), (3952, 5024), (4082, 4864)]