18979831808

素因数分解:

$2^{14}\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2267}}^1$

素因数の和:2375

約数の個数: 120

約数和(自身を含む): 43994809152

約数和(自身を除く): 25014977344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 512, 584, 896, 1022, 1024, 1168, 1792, 2044, 2048, 2267, 2336, 3584, 4088, 4096, 4534, 4672, 7168, 8176, 8192, 9068, 9344, 14336, 15869, 16352, 16384, 18136, 18688, 28672, 31738, 32704, 36272, 37376, 57344, 63476, 65408, 72544, 74752, 114688, 126952, 130816, 145088, 149504, 165491, 253904, 261632, 290176, 299008, 330982, 507808, 523264, 580352, 598016, 661964, 1015616, 1046528, 1158437, 1160704, 1196032, 1323928, 2031232, 2093056, 2316874, 2321408, 2647856, 4062464, 4186112, 4633748, 4642816, 5295712, 8124928, 8372224, 9267496, 9285632, 10591424, 16249856, 18534992, 18571264, 21182848, 32499712, 37069984, 37142528, 42365696, 64999424, 74139968, 84731392, 129998848, 148279936, 169462784, 259997696, 296559872, 338925568, 593119744, 677851136, 1186239488, 1355702272, 2372478976, 2711404544, 4744957952, 9489915904, 18979831808]

約数ペア:

[(1, 18979831808), (2, 9489915904), (4, 4744957952), (7, 2711404544), (8, 2372478976), (14, 1355702272), (16, 1186239488), (28, 677851136), (32, 593119744), (56, 338925568), (64, 296559872), (73, 259997696), (112, 169462784), (128, 148279936), (146, 129998848), (224, 84731392), (256, 74139968), (292, 64999424), (448, 42365696), (511, 37142528), (512, 37069984), (584, 32499712), (896, 21182848), (1022, 18571264), (1024, 18534992), (1168, 16249856), (1792, 10591424), (2044, 9285632), (2048, 9267496), (2267, 8372224), (2336, 8124928), (3584, 5295712), (4088, 4642816), (4096, 4633748), (4534, 4186112), (4672, 4062464), (7168, 2647856), (8176, 2321408), (8192, 2316874), (9068, 2093056), (9344, 2031232), (14336, 1323928), (15869, 1196032), (16352, 1160704), (16384, 1158437), (18136, 1046528), (18688, 1015616), (28672, 661964), (31738, 598016), (32704, 580352), (36272, 523264), (37376, 507808), (57344, 330982), (63476, 299008), (65408, 290176), (72544, 261632), (74752, 253904), (114688, 165491), (126952, 149504), (130816, 145088)]