20408510300

素因数分解:

$2^2\times 5^2\times {\mathrm{2389}}^1\times {\mathrm{85427}}^1$

素因数の和:87830

約数の個数: 36

約数和(自身を含む): 44305523640

約数和(自身を除く): 23897013340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2389, 4778, 9556, 11945, 23890, 47780, 59725, 85427, 119450, 170854, 238900, 341708, 427135, 854270, 1708540, 2135675, 4271350, 8542700, 204085103, 408170206, 816340412, 1020425515, 2040851030, 4081702060, 5102127575, 10204255150, 20408510300]

約数ペア:

[(1, 20408510300), (2, 10204255150), (4, 5102127575), (5, 4081702060), (10, 2040851030), (20, 1020425515), (25, 816340412), (50, 408170206), (100, 204085103), (2389, 8542700), (4778, 4271350), (9556, 2135675), (11945, 1708540), (23890, 854270), (47780, 427135), (59725, 341708), (85427, 238900), (119450, 170854)]