20665451856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{3851}}^1\times {\mathrm{15971}}^1$

素因数の和:19840

約数の個数: 80

約数和(自身を含む): 61031950848

約数和(自身を除く): 40366498992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 3851, 7702, 11553, 15404, 15971, 23106, 26957, 30808, 31942, 46212, 47913, 53914, 61616, 63884, 80871, 92424, 95826, 107828, 111797, 127768, 161742, 184848, 191652, 215656, 223594, 255536, 323484, 335391, 383304, 431312, 447188, 646968, 670782, 766608, 894376, 1293936, 1341564, 1788752, 2683128, 5366256, 61504321, 123008642, 184512963, 246017284, 369025926, 430530247, 492034568, 738051852, 861060494, 984069136, 1291590741, 1476103704, 1722120988, 2583181482, 2952207408, 3444241976, 5166362964, 6888483952, 10332725928, 20665451856]

約数ペア:

[(1, 20665451856), (2, 10332725928), (3, 6888483952), (4, 5166362964), (6, 3444241976), (7, 2952207408), (8, 2583181482), (12, 1722120988), (14, 1476103704), (16, 1291590741), (21, 984069136), (24, 861060494), (28, 738051852), (42, 492034568), (48, 430530247), (56, 369025926), (84, 246017284), (112, 184512963), (168, 123008642), (336, 61504321), (3851, 5366256), (7702, 2683128), (11553, 1788752), (15404, 1341564), (15971, 1293936), (23106, 894376), (26957, 766608), (30808, 670782), (31942, 646968), (46212, 447188), (47913, 431312), (53914, 383304), (61616, 335391), (63884, 323484), (80871, 255536), (92424, 223594), (95826, 215656), (107828, 191652), (111797, 184848), (127768, 161742)]