163655680

素因数分解:

$2^{12}\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:221

約数の個数: 104

約数和(自身を含む): 402210864

約数和(自身を除く): 238555184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 131, 160, 244, 256, 262, 305, 320, 488, 512, 524, 610, 640, 655, 976, 1024, 1048, 1220, 1280, 1310, 1952, 2048, 2096, 2440, 2560, 2620, 3904, 4096, 4192, 4880, 5120, 5240, 7808, 7991, 8384, 9760, 10240, 10480, 15616, 15982, 16768, 19520, 20480, 20960, 31232, 31964, 33536, 39040, 39955, 41920, 62464, 63928, 67072, 78080, 79910, 83840, 124928, 127856, 134144, 156160, 159820, 167680, 249856, 255712, 268288, 312320, 319640, 335360, 511424, 536576, 624640, 639280, 670720, 1022848, 1249280, 1278560, 1341440, 2045696, 2557120, 2682880, 4091392, 5114240, 8182784, 10228480, 16365568, 20456960, 32731136, 40913920, 81827840, 163655680]

約数ペア:

[(1, 163655680), (2, 81827840), (4, 40913920), (5, 32731136), (8, 20456960), (10, 16365568), (16, 10228480), (20, 8182784), (32, 5114240), (40, 4091392), (61, 2682880), (64, 2557120), (80, 2045696), (122, 1341440), (128, 1278560), (131, 1249280), (160, 1022848), (244, 670720), (256, 639280), (262, 624640), (305, 536576), (320, 511424), (488, 335360), (512, 319640), (524, 312320), (610, 268288), (640, 255712), (655, 249856), (976, 167680), (1024, 159820), (1048, 156160), (1220, 134144), (1280, 127856), (1310, 124928), (1952, 83840), (2048, 79910), (2096, 78080), (2440, 67072), (2560, 63928), (2620, 62464), (3904, 41920), (4096, 39955), (4192, 39040), (4880, 33536), (5120, 31964), (5240, 31232), (7808, 20960), (7991, 20480), (8384, 19520), (9760, 16768), (10240, 15982), (10480, 15616)]