20978405248

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{375043}}^1$

素因数の和:375099

約数の個数: 64

約数和(自身を含む): 45905385600

約数和(自身を除く): 24926980352

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 368, 437, 608, 736, 874, 1216, 1472, 1748, 2432, 2944, 3496, 6992, 13984, 27968, 55936, 375043, 750086, 1500172, 3000344, 6000688, 7125817, 8625989, 12001376, 14251634, 17251978, 24002752, 28503268, 34503956, 48005504, 57006536, 69007912, 114013072, 138015824, 163893791, 228026144, 276031648, 327787582, 456052288, 552063296, 655575164, 912104576, 1104126592, 1311150328, 2622300656, 5244601312, 10489202624, 20978405248]

約数ペア:

[(1, 20978405248), (2, 10489202624), (4, 5244601312), (8, 2622300656), (16, 1311150328), (19, 1104126592), (23, 912104576), (32, 655575164), (38, 552063296), (46, 456052288), (64, 327787582), (76, 276031648), (92, 228026144), (128, 163893791), (152, 138015824), (184, 114013072), (304, 69007912), (368, 57006536), (437, 48005504), (608, 34503956), (736, 28503268), (874, 24002752), (1216, 17251978), (1472, 14251634), (1748, 12001376), (2432, 8625989), (2944, 7125817), (3496, 6000688), (6992, 3000344), (13984, 1500172), (27968, 750086), (55936, 375043)]